The $19.95 Solution to Large Group Telephone Interviews with Special Speakers.

ERIC Educational Resources Information Center

Robinson, George H.

1998-01-01

Describes an inexpensive solution for holding large-group telephone interviews, listing the equipment needed (record control, telephone, phone line with modular jack, portable amplifier with microphone-level input jack, audio cable with jack and plug compatible with the microphone input jack on the amplifier) and providing directions for setup.…

46 CFR 134.150 - Liftboat-jacking systems.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 46 Shipping 4 2010-10-01 2010-10-01 false Liftboat-jacking systems. 134.150 Section 134.150... FOR LIFTBOATS § 134.150 Liftboat-jacking systems. (a) For this subchapter, liftboat jacking systems are vital systems and must comply with Sections 4/1.13.1 through 4/1.13.3 of the ABS's “Rules for...

46 CFR 134.150 - Liftboat-jacking systems.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 46 Shipping 4 2011-10-01 2011-10-01 false Liftboat-jacking systems. 134.150 Section 134.150... FOR LIFTBOATS § 134.150 Liftboat-jacking systems. (a) For this subchapter, liftboat jacking systems are vital systems and must comply with Sections 4/1.13.1 through 4/1.13.3 of the ABS's “Rules for...

Psychoanalysis of Jack London's "The Call of the Wild" and "White Fang"

ERIC Educational Resources Information Center

Yang, Hongyan

2015-01-01

"The Call of the Wild" and "White Fang" both are masterpieces of Jack London. The protagonists Buck and White Fang are the incarnation of Jack himself to some extent for the two novels reveal a great deal of the writer. This essay aims at psychoanalyzing Jack London's creative process, the Oedipus complex and the confliction…

21 CFR 133.154 - High-moisture jack cheese.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 21 Food and Drugs 2 2013-04-01 2013-04-01 false High-moisture jack cheese. 133.154 Section 133.154... Cheese and Related Products § 133.154 High-moisture jack cheese. High-moisture jack cheese conforms to... ingredients prescribed for monterey cheese by § 133.153, except that its moisture content is more than 44...

21 CFR 133.154 - High-moisture jack cheese.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 2 2014-04-01 2014-04-01 false High-moisture jack cheese. 133.154 Section 133.154... Cheese and Related Products § 133.154 High-moisture jack cheese. High-moisture jack cheese conforms to... ingredients prescribed for monterey cheese by § 133.153, except that its moisture content is more than 44...

21 CFR 133.154 - High-moisture jack cheese.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 21 Food and Drugs 2 2012-04-01 2012-04-01 false High-moisture jack cheese. 133.154 Section 133.154... Cheese and Related Products § 133.154 High-moisture jack cheese. High-moisture jack cheese conforms to... ingredients prescribed for monterey cheese by § 133.153, except that its moisture content is more than 44...

Jack & the Video Camera

ERIC Educational Resources Information Center

Charlan, Nathan

2010-01-01

This article narrates how the use of video camera has transformed the life of Jack Williams, a 10-year-old boy from Colorado Springs, Colorado, who has autism. The way autism affected Jack was unique. For the first nine years of his life, Jack remained in his world, alone. Functionally non-verbal and with motor skill problems that affected his…

75 FR 32357 - Gallatin National Forest; Montana; Jack Rabbit to Big Sky Meadow Village 161 kV Transmission Line...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-06-08

... DEPARTMENT OF AGRICULTURE Forest Service Gallatin National Forest; Montana; Jack Rabbit to Big Sky... electric transmission line. The upgraded 161-kV transmission line would connect the existing Jack Rabbit... with eight regional entities to improve the reliability of the bulk power system. The Jack Rabbit to...

Recollections of Jack Michael and the Application of Skinner's Analysis of Verbal Behavior

ERIC Educational Resources Information Center

Sundberg, Mark L.

2017-01-01

Jack Michael offered a course on verbal behavior almost every year throughout his teaching career. Jack was also interested in the application of Skinner's work and in 1976 began to offer a graduate course at Western Michigan University titled Verbal Behavior Applications. Jack and his students pursued the application of Skinner's work on verbal…

AmeriFlux CA-SJ3 Saskatchewan - Western Boreal, Jack Pine forest harvested in 1975 (BOREAS Young Jack Pine)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barr, Alan

This is the AmeriFlux version of the carbon flux data for the site CA-SJ3 Saskatchewan - Western Boreal, Jack Pine forest harvested in 1975 (BOREAS Young Jack Pine). Site Description - 53.87581° N, 104.64529° W, BOREAS 1994, 1996, BERMS climate and flux measurements to begin Spring 2003

Fire effects in northeastern forests: jack pine.

Treesearch

Cary Rouse

1986-01-01

The jack pine ecosystem has evolved through fire. Jack pine, although easily killed by fire, has developed serotinous cones that depend upon high heat to open and release the seeds. Without a fire to enable the cones to open, jack pine would be replaced by another species. Prescribed fire can be an economical management tool for site preparation in either a natural...

Determining the effect of different cooking methods on the nutritional composition of salmon (Salmo salar) and chilean jack mackerel (Trachurus murphyi) fillets.

PubMed

Bastías, José M; Balladares, Pamela; Acuña, Sergio; Quevedo, Roberto; Muñoz, Ociel

2017-01-01

The effect of four cooking methods was evaluated for proximate composition, fatty acid, calcium, iron, and zinc content in salmon and Chilean jack mackerel. The moisture content of steamed salmon decreased (64.94%) compared to the control (68.05%); a significant decrease was observed in Chilean jack mackerel in all the treatments when compared to the control (75.37%). Protein content in both salmon and Chilean jack mackerel significantly increased under the different treatments while the most significant decrease in lipids was found in oven cooking and canning for salmon and microwaving for Chilean jack mackerel. Ash concentration in both salmon and Chilean jack mackerel did not reveal any significant differences. Iron and calcium content only had significant changes in steaming while zinc did not undergo any significant changes in the different treatments. Finally, no drastic changes were observed in the fatty acid profile in both salmon and Chilean jack mackerel.

Determining the effect of different cooking methods on the nutritional composition of salmon (Salmo salar) and chilean jack mackerel (Trachurus murphyi) fillets

PubMed Central

Balladares, Pamela; Acuña, Sergio; Quevedo, Roberto; Muñoz, Ociel

2017-01-01

The effect of four cooking methods was evaluated for proximate composition, fatty acid, calcium, iron, and zinc content in salmon and Chilean jack mackerel. The moisture content of steamed salmon decreased (64.94%) compared to the control (68.05%); a significant decrease was observed in Chilean jack mackerel in all the treatments when compared to the control (75.37%). Protein content in both salmon and Chilean jack mackerel significantly increased under the different treatments while the most significant decrease in lipids was found in oven cooking and canning for salmon and microwaving for Chilean jack mackerel. Ash concentration in both salmon and Chilean jack mackerel did not reveal any significant differences. Iron and calcium content only had significant changes in steaming while zinc did not undergo any significant changes in the different treatments. Finally, no drastic changes were observed in the fatty acid profile in both salmon and Chilean jack mackerel. PMID:28686742

Maniac Talk - Dr. Jack Kaye

NASA Image and Video Library

2014-07-23

Jack Kaye Maniac Lecture, July 23, 2014 Dr. Jack Kaye, Associate Director for Research at NASA Headquarters presented a Maniac Talk entitled, "An Unlikely but Rewarding Journey--From Quantum Chemistry to Earth Science Research Program Leadership." Jack took stock of his 30+ years at NASA, noting the people, opportunities, lessons learned, and choices that helped him get to where he is today and accomplish what he have.

AmeriFlux US-NMj Northern Michigan Jack Pine Stand

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chen, Jiquan

This is the AmeriFlux version of the carbon flux data for the site US-NMj Northern Michigan Jack Pine Stand. Site Description - The jack pine site is owned by Michigan Technological University. The stand is managed, and thus thinned and harvested depending on stand age. This jack pine site is naturally regenerating following a clearcut around 1989. Heavy snow in December 2001 c

From Jack to Double Jack Polynomials via the Supersymmetric Bridge

NASA Astrophysics Data System (ADS)

Lapointe, Luc; Mathieu, Pierre

2015-07-01

The Calogero-Sutherland model occurs in a large number of physical contexts, either directly or via its eigenfunctions, the Jack polynomials. The supersymmetric counterpart of this model, although much less ubiquitous, has an equally rich structure. In particular, its eigenfunctions, the Jack superpolynomials, appear to share the very same remarkable combinatorial and structural properties as their non-supersymmetric version. These super-functions are parametrized by superpartitions with fixed bosonic and fermionic degrees. Now, a truly amazing feature pops out when the fermionic degree is sufficiently large: the Jack superpolynomials stabilize and factorize. Their stability is with respect to their expansion in terms of an elementary basis where, in the stable sector, the expansion coefficients become independent of the fermionic degree. Their factorization is seen when the fermionic variables are stripped off in a suitable way which results in a product of two ordinary Jack polynomials (somewhat modified by plethystic transformations), dubbed the double Jack polynomials. Here, in addition to spelling out these results, which were first obtained in the context of Macdonal superpolynomials, we provide a heuristic derivation of the Jack superpolynomial case by performing simple manipulations on the supersymmetric eigen-operators, rendering them independent of the number of particles and of the fermionic degree. In addition, we work out the expression of the Hamiltonian which characterizes the double Jacks. This Hamiltonian, which defines a new integrable system, involves not only the expected Calogero-Sutherland pieces but also combinations of the generators of an underlying affine {widehat{sl}_2} algebra.

Jack bean (Canavalia ensiformis): nutrition related aspects and needed nutrition research.

PubMed

Akpapunam, M A; Sefa-Dedeh, S

1997-01-01

The nutritional characteristics and food potentials of jack bean (Canavalia ensiformis) have been reviewed. The bean is a good sources of protein, 23% to 34%, and carbohydrate 55%. It is also a good source of Ca, Zn, P, Mg, Cu and Ni. Jack bean protein is adequate in most essential amino acids with the exception of methionine and cystine which may be nutritionally limiting. Antinutritional and toxic factors including trypsin inhibitors, hemagglutinins, cyanogen glucosides, oligosaccharides and others are present in jack bean. Properly processed jack bean could be used to prepare some of the popular dishes made from cowpea, peanut, pigeon pea and soybean. Industrial products such as protein concentrates and isolates, starch, flakes, grits and flours can be produced from the bean. Further research is needed to identify varieties with high protein and nutritional quality. Development of new highly nutritious food products based on whole or processed jack bean should increase production and expand use.

Students Learning Physics While Lifting Themselves: A Simple Analysis of a Scissors Jack

ERIC Educational Resources Information Center

Haugland, Ole Anton

2017-01-01

Every time I have to jack up my car, I am a bit surprised by how slowly the scissors jack works the higher I raise it, and close to maximum height I need very little force to turn the crank. This agrees well with the principle of simple machines. Since I have to jack up my car at least twice a year to change between winter tires and summer tires,…

3-D habitat suitability of jack mackerel Trachurus murphyi in the Southeastern Pacific, a comprehensive study

NASA Astrophysics Data System (ADS)

Bertrand, Arnaud; Habasque, Jérémie; Hattab, Tarek; Hintzen, Niels T.; Oliveros-Ramos, Ricardo; Gutiérrez, Mariano; Demarcq, Hervé; Gerlotto, François

2016-08-01

South Pacific jack mackerel, Trachurus murphyi, has an ocean-scale distribution, from the South American coastline to New Zealand and Tasmania. This fish, captured by Humans since the Holocene, is nowadays heavily exploited and its population has decreased substantially since the mid-1990s. The uncertainty associated to jack mackerel population structure currently hampers management. Several hypotheses have been proposed from a single population up to several discrete populations. Still no definitive answer was given. Determining how environmental conditions drive jack mackerel distribution can provide insights on its population structure. To do so, here we performed in three steps. First, we used satellite data to develop a statistical model of jack mackerel horizontal habitat suitability. Model predictions based on interaction between temperature and chlorophyll-a match the observed jack mackerel distribution, even during extreme El Niño event. Second, we studied the impact of oxygen and show that jack mackerel distribution and abundance is correlated to oxygen over a wide variety of scales and avoid low oxygen areas and periods. Third, on the basis of the above we built a conceptual 3D model of jack mackerel habitat in the Southeastern Pacific. We reveal the presence of a low suitable habitat along the Chilean and Peruvian coast, figuratively presenting a closed door caused by a gap in the horizontal habitat at ∼19-22°S and a shallow oxycline off south-centre Peru. This kind of situation likely occurs on a seasonal basis, in austral summer but also at longer temporal scales. A lack of exchanges at some periods/seasons partially isolate jack mackerel distributed off Peru. On the other hand the continuity in the habitat during most of the year explains why exchanges occur. We conclude that the more likely population structure for jack mackerel is a pelagic metapopulation.

Comparative analysis of a jack-up drilling unit with different leg systems

NASA Astrophysics Data System (ADS)

Ren, Xiangang; Bai, Yong; Jia, Lusheng

2012-09-01

The jack-up unit is one of the best drilling platforms in offshore oil fields with water depth shallower than 150 meters. As the most pivotal component of the jack-up unit, the leg system can directly affect the global performance of a jack-up unit. Investigation shows that there are three kinds of leg structure forms in the world now: the reverse K, X, and mixing types. In order to clarify the advantage and defects of each one, as well as their effect on the global performance of the jack-up unit, this paper commenced to study performance targets of a deepwater jack-up unit with different leg systems (X type, reverse K type, and mixing type). In this paper a typical leg scantling dimension and identical external loads were selected, detailed finite element snalysis (FEA) models were built to simulate the jack-up unit's structural behavior, and the multi-point constraint (MPC) element together with the spring element was used to deal with the boundary condition. Finally, the above problems were solved by comparative analysis of their main performance targets (including ultimate static strength, dynamic response, and weight).

Using Black Light to Find Jack-Pine Budworm Egg Masses

Treesearch

Daniel T. Jennings

1968-01-01

Jack pine foliage infested with jack-pine budworm egg masses was examined under two kinds of light -- black light and a combination of natural and fluorescent light. Black light significantly increased the accuracy of count but not the efficiency of examination.

Analytical results and sample locality maps of stream-sediment, heavy-mineral-concentrate, and rock samples from the Little Jacks Creek (ID-111-006), Big Jacks Creek (ID-111-007C), Duncan Creek (ID-111-0007B), and Upper Deep Creek (ID-111-044) Wilderness Study Areas, Owyhee County, Idaho

DOE Office of Scientific and Technical Information (OSTI.GOV)

Erickson, M.S.; Gent, C.A.; Bradley, L.A.

1989-01-01

A U.S. Geological Survey report detailing the analytical results and sample locality maps of stream-sediment, heavy-mineral-concentrate, and rock samples from the Little Jacks Creek, Big Jacks Creek, Duncan Creek, and Upper Deep Creek Wilderness Study Areas, Owyhee County, Idaho

Students Learning Physics While Lifting Themselves: A Simple Analysis of a Scissors Jack

NASA Astrophysics Data System (ADS)

Haugland, Ole Anton

2017-02-01

Every time I have to jack up my car, I am a bit surprised by how slowly the scissors jack works the higher I raise it, and close to maximum height I need very little force to turn the crank. This agrees well with the principle of simple machines. Since I have to jack up my car at least twice a year to change between winter tires and summer tires, I thought it was time to take a closer look at the physics behind the process. And like most physics teachers, I am always looking for new ideas for my teaching. In this note I will present a few ideas on how a jack can be a topic in physics teaching.

Variations in foliar monoterpenes across the range of jack pine reveal three widespread chemotypes: implications to host expansion of invasive mountain pine beetle.

PubMed

Taft, Spencer; Najar, Ahmed; Godbout, Julie; Bousquet, Jean; Erbilgin, Nadir

2015-01-01

The secondary compounds of pines (Pinus) can strongly affect the physiology, ecology and behaviors of the bark beetles (Coleoptera: Curculionidae, Scolytinae) that feed on sub-cortical tissues of hosts. Jack pine (Pinus banksiana) has a wide natural distribution range in North America (Canada and USA) and thus variations in its secondary compounds, particularly monoterpenes, could affect the host expansion of invasive mountain pine beetle (Dendroctonus ponderosae), which has recently expanded its range into the novel jack pine boreal forest. We investigated monoterpene composition of 601 jack pine trees from natural and provenance forest stands representing 63 populations from Alberta to the Atlantic coast. Throughout its range, jack pine exhibited three chemotypes characterized by high proportions of α-pinene, β-pinene, or limonene. The frequency with which the α-pinene and β-pinene chemotypes occurred at individual sites was correlated to climatic variables, such as continentality and mean annual precipitation, as were the individual α-pinene and β-pinene concentrations. However, other monoterpenes were generally not correlated to climatic variables or geographic distribution. Finally, while the enantiomeric ratios of β-pinene and limonene remained constant across jack pine's distribution, (-):(+)-α-pinene exhibited two separate trends, thereby delineating two α-pinene phenotypes, both of which occurred across jack pine's range. These significant variations in jack pine monoterpene composition may have cascading effects on the continued eastward spread and success of D. ponderosae in the Canadian boreal forest.

Advanced jack up rig breaking U.S. construction drought

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kelly, P.

1997-03-10

A new heavy duty jack up, due in mid-1998, will be able to simultaneously drill and produce wells in harsher environments and deeper water than current jack ups in the worldwide fleet. Rowan Cos. Inc.`s Gorilla V is the only mobile offshore drilling unit (MODU) currently under construction in the US. Two more enhanced Gorilla design rigs are planned before the year 2000. The enhanced Gorilla class jack up represents the most technologically advanced jack up unit constructed to date. The rigs are structurally designed to meet year-round weather challenges in the harshest geographical environments. Rising demand for drilling rigs,more » coupled with a dwindling fleet, is generating supply shortages around the world, particularly at the high-specification end of the market. Even increasing the historical retirement age from 20 to 25 years, rig attrition continues at a level of about 18 rigs per year. Apart from the jack up market per se, however, Rowan`s strategy in designing and building enhanced Gorillas is to improve existing jack up drilling technology and offer the versatility to operate as a drilling unit, a mobile production unit, or both simultaneously in either open water locations or alongside existing platforms. The paper discusses the market for these heavy jack-ups, the use of one on the Cohasset project in Nova Scotia, the Gorilla V and enhanced Gorillas, geographical range of use, and MOPU economics.« less

Jack mechanism having positive stop means for its crank handle

NASA Astrophysics Data System (ADS)

Crockett, Watkins, IV; Baird, Bernard W.

1995-04-01

A jack mechanism having a crank handle that drives a linear motion control ball nut and threaded screw is presented. Two rods are included to provide a positive stop in each direction of the jack's limit so as to prevent overrun of the mechanism.

14 CFR 23.507 - Jacking loads.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Jacking loads. 23.507 Section 23.507 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT AIRWORTHINESS... inertia forces so as to result in no change in the direction of the resultant loads at the jack points. (c...

21 CFR 133.153 - Monterey cheese and monterey jack cheese.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Monterey cheese and monterey jack cheese. 133.153... (CONTINUED) FOOD FOR HUMAN CONSUMPTION CHEESES AND RELATED CHEESE PRODUCTS Requirements for Specific Standardized Cheese and Related Products § 133.153 Monterey cheese and monterey jack cheese. (a) Description...

21 CFR 133.153 - Monterey cheese and monterey jack cheese.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 2 2011-04-01 2011-04-01 false Monterey cheese and monterey jack cheese. 133.153... (CONTINUED) FOOD FOR HUMAN CONSUMPTION CHEESES AND RELATED CHEESE PRODUCTS Requirements for Specific Standardized Cheese and Related Products § 133.153 Monterey cheese and monterey jack cheese. (a) Description...

76 FR 21827 - Proposed Amendment of Class E Airspace; El Dorado, KS

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-19

...-directional beacon (NDB) at Captain Jack Thomas/El Dorado Airport, El Dorado, KS, has made this action necessary for the safety and management of Instrument Flight Rules (IFR) operations at Captain Jack Thomas... instrument approach procedures at Captain Jack Thomas/El Dorado Airport, El Dorado, KS. Airspace...

Jack Polynomials as Fractional Quantum Hall States and the Betti Numbers of the ( k + 1)-Equals Ideal

NASA Astrophysics Data System (ADS)

Zamaere, Christine Berkesch; Griffeth, Stephen; Sam, Steven V.

2014-08-01

We show that for Jack parameter α = -( k + 1)/( r - 1), certain Jack polynomials studied by Feigin-Jimbo-Miwa-Mukhin vanish to order r when k + 1 of the coordinates coincide. This result was conjectured by Bernevig and Haldane, who proposed that these Jack polynomials are model wavefunctions for fractional quantum Hall states. Special cases of these Jack polynomials include the wavefunctions of Laughlin and Read-Rezayi. In fact, along these lines we prove several vanishing theorems known as clustering properties for Jack polynomials in the mathematical physics literature, special cases of which had previously been conjectured by Bernevig and Haldane. Motivated by the method of proof, which in the case r = 2 identifies the span of the relevant Jack polynomials with the S n -invariant part of a unitary representation of the rational Cherednik algebra, we conjecture that unitary representations of the type A Cherednik algebra have graded minimal free resolutions of Bernstein-Gelfand-Gelfand type; we prove this for the ideal of the ( k + 1)-equals arrangement in the case when the number of coordinates n is at most 2 k + 1. In general, our conjecture predicts the graded S n -equivariant Betti numbers of the ideal of the ( k + 1)-equals arrangement with no restriction on the number of ambient dimensions.

A note on the Goodman Jack

USGS Publications Warehouse

Swolfs, H.S.; Kibler, J.D.

1982-01-01

A Note on the Goodman Jack: Reconnaissance experiments, performed to evaluate the practical utility of the hard-rock variety of the Goodman Jack, reveal that the Hustrulid-T* correction adequately reconciles the discrepancy between the measured and true deformation modulus of the rock mass in the range of 30 to 50 gigapascals. ?? 1982 Springer-Verlag.

Transitional Experiences of Post-16 Sports Education: Jack's Story

ERIC Educational Resources Information Center

Aldous, David C. R.; Sparkes, Andrew C.; Brown, David H. K.

2014-01-01

This paper explores the layered transitional experiences of a semi-professional athlete named Jack (a pseudonym) between the fields of professional sport and further and higher education. Our analysis is framed by the quadripartite framework of structuration and focuses on Jack's "in-situ" practices at his college and university in order…

AmeriFlux US-Wi9 Young Jack pine (YJP)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chen, Jiquan

This is the AmeriFlux version of the carbon flux data for the site US-Wi9 Young Jack pine (YJP). Site Description - The Wisconsin Young Jack Pine site is located in the Washburn Ranger District of the northeastern section of Chequamegon National Forest. A member of the northern coniferous-deciduous biome, surveys from the mid-19th century indicate the region consisted of a mixed stand of red, white, and jack pines. After extensive timber harvesting, wildfires, and farming activity, the region turned into a fragmented mosaic of stands of various ages and composition. As an assemblage, the ten Wisconsin sites are indicative ofmore » the successional stages of development in the predominant stand types of a physically homogeneous landscape. Clearcut on 40 to 70 year intervals, jack pine stands occupy approximately 13% of the region.« less

Comparison of lodgepole and jack pine resin chemistry: implications for range expansion by the mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae).

PubMed

Clark, Erin L; Pitt, Caitlin; Carroll, Allan L; Lindgren, B Staffan; Huber, Dezene P W

2014-01-01

The mountain pine beetle, Dendroctonus ponderosae, is a significant pest of lodgepole pine in British Columbia (BC), where it has recently reached an unprecedented outbreak level. Although it is native to western North America, the beetle can now be viewed as a native invasive because for the first time in recorded history it has begun to reproduce in native jack pine stands within the North American boreal forest. The ability of jack pine trees to defend themselves against mass attack and their suitability for brood success will play a major role in the success of this insect in a putatively new geographic range and host. Lodgepole and jack pine were sampled along a transect extending from the beetle's historic range (central BC) to the newly invaded area east of the Rocky Mountains in north-central Alberta (AB) in Canada for constitutive phloem resin terpene levels. In addition, two populations of lodgepole pine (BC) and one population of jack pine (AB) were sampled for levels of induced phloem terpenes. Phloem resin terpenes were identified and quantified using gas chromatography. Significant differences were found in constitutive levels of terpenes between the two species of pine. Constitutive α-pinene levels - a precursor in the biosynthesis of components of the aggregation and antiaggregation pheromones of mountain pine beetle - were significantly higher in jack pine. However, lower constitutive levels of compounds known to be toxic to bark beetles, e.g., 3-carene, in jack pine suggests that this species could be poorly defended. Differences in wounding-induced responses for phloem accumulation of five major terpenes were found between the two populations of lodgepole pine and between lodgepole and jack pine. The mountain pine beetle will face a different constitutive and induced phloem resin terpene environment when locating and colonizing jack pine in its new geographic range, and this may play a significant role in the ability of the insect to persist in this new host.

Structure and biomass production of one- to seven-year-old intensively cultured jack pine plantation in Wisconsin.

Treesearch

J. Zavitkovski; David H. Dawson

1978-01-01

Spacing and rotation length effects were studied for 7 years in intensively cultured jack pine stands. Production culminated at age 5 in the densest planting and progressively later in more open spacing. Biomass production was two to several times higher than in jack pine plantations grown under traditional silvicultural systems.

Load capacity, failure mode and design criteria investigation of sand jacks : full scale load testing of sand jacks.

DOT National Transportation Integrated Search

2008-12-01

A sand-jack is a sand filled container used as a component of cast-in-place bridge false-work. The sand filler facilitates the removal of the false-work by allowing slow and controlled lowering of the bracing that has become wedged beneath the new br...

Transcriptome resources and functional characterization of monoterpene synthases for two host species of the mountain pine beetle, lodgepole pine (Pinus contorta) and jack pine (Pinus banksiana)

PubMed Central

2013-01-01

Background The mountain pine beetle (MPB, Dendroctonus ponderosae) epidemic has affected lodgepole pine (Pinus contorta) across an area of more than 18 million hectares of pine forests in western Canada, and is a threat to the boreal jack pine (Pinus banksiana) forest. Defence of pines against MPB and associated fungal pathogens, as well as other pests, involves oleoresin monoterpenes, which are biosynthesized by families of terpene synthases (TPSs). Volatile monoterpenes also serve as host recognition cues for MPB and as precursors for MPB pheromones. The genes responsible for terpene biosynthesis in jack pine and lodgepole pine were previously unknown. Results We report the generation and quality assessment of assembled transcriptome resources for lodgepole pine and jack pine using Sanger, Roche 454, and Illumina sequencing technologies. Assemblies revealed transcripts for approximately 20,000 - 30,000 genes from each species and assembly analyses led to the identification of candidate full-length prenyl transferase, TPS, and P450 genes of oleoresin biosynthesis. We cloned and functionally characterized, via expression of recombinant proteins in E. coli, nine different jack pine and eight different lodgepole pine mono-TPSs. The newly identified lodgepole pine and jack pine mono-TPSs include (+)-α-pinene synthases, (-)-α-pinene synthases, (-)-β-pinene synthases, (+)-3-carene synthases, and (-)-β-phellandrene synthases from each of the two species. Conclusion In the absence of genome sequences, transcriptome assemblies are important for defence gene discovery in lodgepole pine and jack pine, as demonstrated here for the terpenoid pathway genes. The product profiles of the functionally annotated mono-TPSs described here can account for the major monoterpene metabolites identified in lodgepole pine and jack pine. PMID:23679205

Motorized support jack

DOEpatents

Haney, Steven J.; Herron, Donald Joe

2003-05-13

A compact, vacuum compatible motorized jack for supporting heavy loads and adjusting their positions is provided. The motorized jack includes: (a) a housing having a base; (b) a first roller device that provides a first slidable surface and that is secured to the base; (c) a second roller device that provides a second slidable surface and that has an upper surface; (d) a wedge that is slidably positioned between the first roller device and the second roller device so that the wedge is in contact with the first slidable surface and the second slidable surface; (e) a motor; and (d) a drive mechanism that connects the motor and the wedge to cause the motor to controllably move the wedge forwards or backwards. Individual motorized jacks can support and lift of an object at an angle. Two or more motorized jacks can provide tip, tilt and vertical position adjustment capabilities.

Motorized support jack

DOEpatents

Haney, Steven J.; Herron, Donald Joe

2001-01-01

A compact, vacuum compatible motorized jack for supporting heavy loads and adjusting their positions is provided. The motorized jack includes: (a) a housing having a base; (b) a first roller device that provides a first slidable surface and that is secured to the base; (c) a second roller device that provides a second slidable surface and that has an upper surface; (d) a wedge that is slidably positioned between the first roller device and the second roller device so that the wedge is in contact with the first slidable surface and the second slidable surface; (e) a motor; and (d) a drive mechanism that connects the motor and the wedge to cause the motor to controllably move the wedge forwards or backwards. Individual motorized jacks can support and lift of an object at an angle. Two or more motorized jacks can provide tip, tilt and vertical position adjustment capabilities.

AmeriFlux US-Wi5 Mixed young jack pine (MYJP)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chen, Jiquan

This is the AmeriFlux version of the carbon flux data for the site US-Wi5 Mixed young jack pine (MYJP). Site Description - The Wisconsin Mixed Young Jack Pine site is located in the Washburn Ranger District of the northeastern section of Chequamegon National Forest. A member of the northern coniferous-deciduous biome, surveys from the mid-19th century indicate the region consisted of a mixed stand of red, white, and jack pines. After extensive timber harvesting, wildfires, and farming activity, the region turned into a fragmented mosaic of stands of various ages and composition. As an assemblage, the ten Wisconsin sites aremore » indicative of the successional stages of development in the predominant stand types of a physically homogeneous landscape. Clearcut on 40 to 70 year intervals, jack pine stands occupy approximately 13% of the region.« less

Seismic analysis of the frame structure reformed by cutting off column and jacking based on stiffness ratio

NASA Astrophysics Data System (ADS)

Zhao, J. K.; Xu, X. S.

2017-11-01

The cutting off column and jacking technology is a method for increasing story height, which has been widely used and paid much attention in engineering. The stiffness will be changed after the process of cutting off column and jacking, which directly affects the overall seismic performance. It is usually necessary to take seismic strengthening measures to enhance the stiffness. A five story frame structure jacking project in Jinan High-tech Zone was taken as an example, and three finite element models were established which contains the frame model before lifting, after lifting and after strengthening. Based on the stiffness, the dynamic time-history analysis was carried out to research its seismic performance under the EL-Centro seismic wave, the Taft seismic wave and the Tianjin artificial seismic wave. The research can provide some guidance for the design and construction of the entire jack lifting structure.

Investigating the Jack the Ripper Case: Engaging Students in a Criminal Investigations Class through Active Learning

ERIC Educational Resources Information Center

Gutierrez, Daniel; Kazmi, Syed

2010-01-01

The present study examines the utilization of a class project involving the Jack the Ripper murders. Students enrolled in a criminal investigations class were required to investigate the five canonical murders associated with the infamous serial killer known as Jack the Ripper and the murders that occurred in London during 1888. This paper…

76 FR 21232 - Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-15

..., AL, Jack Edwards, ILS OR LOC RWY 27, Amdt 1 Gulf Shores, AL, Jack Edwards, RNAV (GPS) RWY 9, Amdt 3 Gulf Shores, AL, Jack Edwards, RNAV (GPS) RWY 27, Amdt 2 Montgomery, AL, Montgomery Rgnl (Dannelly... Williams Memorial, RNAV (GPS) RWY 24, Amdt 1 Vineyard Haven, MA, Marthas Vineyard, RNAV (GPS) RWY 6, Amdt 1...

Love that Poem! Using Imitation to Teach Poetry

ERIC Educational Resources Information Center

Brannon, April

2012-01-01

Sharon Creech's book, "Love That Dog," is the story of a young poet named Jack, a good teacher, and a dog. Using free verse, Jack describes how he becomes a writer in dated journal entries. He is just an average kid, like so many of the kids in one's classes. But Jack has an excellent English teacher in Miss Stretchberry. She assigns freewriting…

Jack Michael's Musings on the 60th Anniversary of Skinner's "Verbal Behavior"

ERIC Educational Resources Information Center

Esch, Barbara E.; Esch, John W.; Palmer, David C.

2017-01-01

When the B. F. Skinner Foundation reprinted Skinner's "Verbal Behavior" in 1992, Jack Michael wrote one of its two forewords, a detailed outline of the book's purpose and scope. On the 60th anniversary of the first publication (1957) of "Verbal Behavior", Jack reflects on the book's impact and its importance to the…

Generalized clustering conditions of Jack polynomials at negative Jack parameter {alpha}

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bernevig, B. Andrei; Department of Physics, Princeton University, Princeton, New Jersey 08544; Haldane, F. D. M.

We present several conjectures on the behavior and clustering properties of Jack polynomials at a negative parameter {alpha}=-(k+1/r-1), with partitions that violate the (k,r,N)- admissibility rule of [Feigin et al. [Int. Math. Res. Notices 23, 1223 (2002)]. We find that the ''highest weight'' Jack polynomials of specific partitions represent the minimum degree polynomials in N variables that vanish when s distinct clusters of k+1 particles are formed, where s and k are positive integers. Explicit counting formulas are conjectured. The generalized clustering conditions are useful in a forthcoming description of fractional quantum Hall quasiparticles.

Verification of hypergraph states

NASA Astrophysics Data System (ADS)

Morimae, Tomoyuki; Takeuchi, Yuki; Hayashi, Masahito

2017-12-01

Hypergraph states are generalizations of graph states where controlled-Z gates on edges are replaced with generalized controlled-Z gates on hyperedges. Hypergraph states have several advantages over graph states. For example, certain hypergraph states, such as the Union Jack states, are universal resource states for measurement-based quantum computing with only Pauli measurements, while graph state measurement-based quantum computing needs non-Clifford basis measurements. Furthermore, it is impossible to classically efficiently sample measurement results on hypergraph states unless the polynomial hierarchy collapses to the third level. Although several protocols have been proposed to verify graph states with only sequential single-qubit Pauli measurements, there was no verification method for hypergraph states. In this paper, we propose a method for verifying a certain class of hypergraph states with only sequential single-qubit Pauli measurements. Importantly, no i.i.d. property of samples is assumed in our protocol: any artificial entanglement among samples cannot fool the verifier. As applications of our protocol, we consider verified blind quantum computing with hypergraph states, and quantum computational supremacy demonstrations with hypergraph states.

Jacking mechanism for upper internals structure of a liquid metal nuclear reactor

DOEpatents

Gillett, James E.; Wineman, Arthur L.

1984-01-01

A jacking mechanism for raising the upper internals structure of a liquid metal nuclear reactor which jacking mechanism uses a system of gears and drive shafts to transmit force from a single motor to four mechanically synchronized ball jacks to raise and lower support columns which support the upper internals structure. The support columns have a pin structure which rides up and down in a slot in a housing fixed to the reactor head. The pin has two locking plates which can be rotated around the pin to bring bolt holes through the locking plates into alignment with a set of bolt holes in the housing, there being a set of such housing bolt holes corresponding to both a raised and a lowered position of the support column. When the locking plate is so aligned, a surface of the locking plate mates with a surface in the housing such that the support column is then supported by the locking plate and not by the ball jacks. Since the locking plates are to be installed and bolted to the housing during periods of reactor operation, the ball jacks need not be sized to react the large forces which occur or potentially could occur on the upper internals structure of the reactor during operation. The locking plates react these loads. The ball jacks, used only during refueling, can be smaller, which enable conventionally available equipment to fulfill the precision requirements for the task within available space.

The Bildungsroman Tradition: The Philosophical Maturation of Jack Burden in "All The King's Men"

ERIC Educational Resources Information Center

Al-Shraah, Bassam M.

2017-01-01

This paper aims to sketch out the transformation that Jack Burden--the main character in the novel--had gone through. With all the political leanings in Warren's "All the king's Men," Jack Burden seems to have had developed his own theories of dealing with life and people all through his life. He has always suffered an inferiority…

Alternate Host of Jack Pine Needle rust in Northern Minnesota

Treesearch

Ralph L. Anderson; Neil A. Anderson

1978-01-01

The pine needle rust of jack pine on the Little Sioux Burn in northeastern Minnesota infected large-leaf aster but not goldenrod. The rust was most severe when asters were abundant on the plots. Les than 10 percent of the jack pine were infected over a 3-year period when asters were more than 10 feet (3.05 m) from the mil-acre plots

Vector-valued Jack polynomials and wavefunctions on the torus

NASA Astrophysics Data System (ADS)

Dunkl, Charles F.

2017-06-01

The Hamiltonian of the quantum Calogero-Sutherland model of N identical particles on the circle with 1/r 2 interactions has eigenfunctions consisting of Jack polynomials times the base state. By use of the generalized Jack polynomials taking values in modules of the symmetric group and the matrix solution of a system of linear differential equations one constructs novel eigenfunctions of the Hamiltonian. Like the usual wavefunctions each eigenfunction determines a symmetric probability density on the N-torus. The construction applies to any irreducible representation of the symmetric group. The methods depend on the theory of generalized Jack polynomials due to Griffeth, and the Yang-Baxter graph approach of Luque and the author.

An experimental study of the mechanism of failure of rocks under borehole jack loading

NASA Technical Reports Server (NTRS)

Van, T. K.; Goodman, R. E.

1971-01-01

Laboratory and field tests with an experimental jack and an NX-borehole jack are reported. The following conclusions were made: Under borehole jack loading, a circular opening in a brittle solid fails by tensile fracturing when the bearing plate width is not too small. Two proposed contact stress distributions can explain the mechanism of tensile fracturing. The contact stress distribution factor is a material property which can be determined experimentally. The borehole tensile strength is larger than the rupture flexural strength. Knowing the magnitude and orientation of the in situ stress field, borehole jack test results can be used to determine the borehole tensile strength. Knowing the orientation of the in situ stress field and the flexural strength of the rock substance, the magnitude of the in situ stress components can be calculated. The detection of very small cracks is essential for the accurate determination of the failure loads which are used in the calculation of strengths and stress components.

Influence of seedbed, light environment, and elevated night temperature on growth and carbon allocation in pitch pine (Pinus rigida) and jack pine (Pinus banksiana) seedlings

Treesearch

Michael E. Day; Jessica L. Schedlbauer; William H. Livingston; Michael S. Greenwood; Alan S. White; John C. Brissette

2005-01-01

Jack pine (Pinus banksiana Lamb.) and pitch pine (Pinus rigida Mill.) are two autecologically similar species that occupy generally disjunct ranges in eastern North America. Jack pine is boreal in distribution, while pitch pine occurs at temperate latitudes. The two species co-occur in a small number of stands along a 'tension...

Revision of the Australian Union-Jack wolf spiders, genus Tasmanicosa (Araneae, Lycosidae, Lycosinae).

PubMed

Framenau, Volker W; Baehr, Barbara C

2016-12-23

The Australian wolf spider (Lycosidae Sundevall, 1833) genus Tasmanicosa Roewer, 1959 with Lycosa tasmanica Hogg, 1905 as type species is revised to include 14 species: T. godeffroyi (L. Koch, 1865), comb. nov. (= Lycosa tasmanica Hogg, 1905, syn. nov.; = Lycosa zualella Strand, 1907, syn. nov.; = Lycosa woodwardi Simon, 1909, syn. nov.); T. fulgor sp. nov.; T. gilberta (Hogg, 1905) comb. nov.; T. harmsi sp. nov.; T. hughjackmani sp. nov.; T. kochorum sp. nov.; T. leuckartii (Thorell, 1870), comb. nov. (= Lycosa molyneuxi Hogg, 1905, syn. nov.); T. musgravei (McKay, 1974) comb. nov.; T. phyllis (Hogg, 1905) comb. nov. (= Lycosa stirlingae Hogg, 1905, syn. nov.); T. ramosa (L. Koch, 1877), comb. nov.; T. salmo sp. nov.; T. semicincta (L. Koch, 1877) comb. nov.; T. stella sp. nov.; and T. subrufa (Karsch, 1878) comb. nov. Within the Australian wolf spider fauna, the genus Tasmanicosa can be diagnosed by the distinct pattern of radiating light and dark lines forming a "Union-Jack" pattern on the carapace. Male pedipalp morphology identifies the genus as part of the subfamily Lycosinae Sundevall, 1833 due to the presence of a transverse tegular apophysis with dorsal groove guiding the embolus during copulation. However, genital morphology is variable and a synapomorphy based on male pedipalp or female epigyne morphology could not be identified. Members of Tasmanicosa are comparatively large spiders (body length ca. 12-30 mm), that build a shallow burrow, which is sometimes covered with a flimsy trapdoor. Species of Tasmanicosa are largely a Bassian faunal element with preference for open woodlands and/or floodplains, although some species can be found into the semi-arid Australian interior. Two Australian wolf spider species may represent Tasmanicosa based on their original descriptions, but due to immature types in combination with the somatic similarities of all Tasmanicosa species, cannot be identified with certainty. They are therefore considered nomina dubia: Lycosa excusor L. Koch, 1867 and Lycosa infensa L. Koch, 1877. The type species of Orthocosa Roewer, 1960 is transferred to Tasmanicosa; however, in order to prevent some non-Australian wolf spiders in the genus Orthocosa to be transferred into Tasmanicosa, which is considered endemic to Australia, we here place these species into more appropriate genera based on their original descriptions pending a future revision of these species: Arctosa ambigua Denis, 1947 comb. reval.; Alopecosa orophila (Thorell, 1887) comb. nov.; Hygrolycosa tokinagai Saito, 1936 comb. reval. Orthocosa sternomaculata (Mello-Leitão, 1943) is considered a junior synonym of Hogna birabeni (Mello-Leitão, 1943) comb. nov.

Effect of water stress and fungal inoculation on monoterpene emission from an historical and a new pine host of the mountain pine beetle.

PubMed

Lusebrink, Inka; Evenden, Maya L; Blanchet, F Guillaume; Cooke, Janice E K; Erbilgin, Nadir

2011-09-01

The mountain pine beetle (Dendroctonus ponderosae, MPB) has killed millions of lodgepole pine (Pinus contorta) trees in Western Canada, and recent range expansion has resulted in attack of jack pine (Pinus banksiana) in Alberta. Establishment of MPB in the Boreal forest will require use of jack pine under a suite of environmental conditions different from those it typically encounters in its native range. Lodgepole and jack pine seedlings were grown under controlled environment conditions and subjected to either water deficit or well watered conditions and inoculated with Grosmannia clavigera, a MPB fungal associate. Soil water content, photosynthesis, stomatal conductance, and emission of volatile organic compounds (VOCs) were monitored over the duration of the six-week study. Monoterpene content of bark and needle tissue was measured at the end of the experiment. β-Phellandrene, the major monoterpene in lodgepole pine, was almost completely lacking in the volatile emission profile of jack pine. The major compound in jack pine was α-pinene. The emission of both compounds was positively correlated with stomatal conductance. 3-Carene was emitted at a high concentration from jack pine seedlings, which is in contrast to monoterpene profiles of jack pine from more southern and eastern parts of its range. Fungal inoculation caused a significant increase in total monoterpene emission in water deficit lodgepole pine seedlings right after its application. By 4 weeks into the experiment, water deficit seedlings of both species released significantly lower levels of total monoterpenes than well watered seedlings. Needle tissue contained lower total monoterpene content than bark. Generally, monoterpene tissue content increased over time independent from any treatment. The results suggest that monoterpenes that play a role in pine-MPB interactions differ between lodgepole and jack pine, and also that they are affected by water availability.

Umatilla River Fish Passage Operations Project : Annual Progress Report October 2007 - September 2008.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bronson, James P.; Loffink, Ken; Duke, Bill

Threemile Falls Dam (Threemile Dam), located near the town of Umatilla, is the major collection and counting point for adult salmonids returning to the Umatilla River. Returning salmon and steelhead were enumerated at Threemile Dam from June 7, 2007 to August 11, 2008. A total of 3,133 summer steelhead (Oncorhynchus mykiss); 1,487 adult, 1,067 jack, and 999 subjack fall Chinook (O. tshawytscha); 5,140 adult and 150 jack coho (O. kisutch); and 2,009 adult, 517 jack, and 128 subjack spring Chinook (O. tshawytscha) were counted. All fish were enumerated at the east bank facility. Of the fish counted, 1,442 summer steelheadmore » and 88 adult and 84 jack spring Chinook were hauled upstream from Threemile Dam. There were 1,497 summer steelhead; 609 adult, 1,018 jack and 979 subjack fall Chinook; 5,036 adult and 144 jack coho; and 1,117 adult, 386 jack and 125 subjack spring Chinook either released at, or allowed to volitionally migrate past, Threemile Dam. Also, 110 summer steelhead; 878 adult and 43 jack fall Chinook; and 560 adult and 28 jack spring Chinook were collected as broodstock for the Umatilla River hatchery program. In addition, there were 241 adult and 15 jack spring Chinook collected at Threemile Dam for outplanting in the South Fork Walla Walla River and Mill Cr, a tributary of the mainstem Walla Walla River. The Westland Canal juvenile facility (Westland), located near the town of Echo at river mile (RM) 27, is the major collection point for out-migrating juvenile salmonids and steelhead kelts. The canal was open for 158 days between February 11, 2008 and July 18, 2008. During that period, fish were bypassed back to the river 150 days and were trapped 6 days. There were also 2 days when fish were directed into and held in the canal forebay between the time the bypass was closed and the trap opened. An estimated 64 pounds of fish were transported from the Westland trapping facility. Approximately 25.8% of the fish transported were salmonids. In addition, one adult Pacific lamprey was trapped and released above the Westland ladder this year. The Threemile Dam west bank juvenile bypass was opened on March 11, 2008 in conjunction with water deliveries and continued through the summer. West Extension Irrigation District (WEID) discontinued diverting live flow on June 24, 2008 but the bypass remained open throughout the project year. The juvenile trap was not operated this project year.« less

JACK - ANTHROPOMETRIC MODELING SYSTEM FOR SILICON GRAPHICS WORKSTATIONS

NASA Technical Reports Server (NTRS)

Smith, B.

1994-01-01

JACK is an interactive graphics program developed at the University of Pennsylvania that displays and manipulates articulated geometric figures. JACK is typically used to observe how a human mannequin interacts with its environment and what effects body types will have upon the performance of a task in a simulated environment. Any environment can be created, and any number of mannequins can be placed anywhere in that environment. JACK includes facilities to construct limited geometric objects, position figures, perform a variety of analyses on the figures, describe the motion of the figures and specify lighting and surface property information for rendering high quality images. JACK is supplied with a variety of body types pre-defined and known to the system. There are both male and female bodies, ranging from the 5th to the 95th percentile, based on NASA Standard 3000. Each mannequin is fully articulated and reflects the joint limitations of a normal human. JACK is an editor for manipulating previously defined objects known as "Peabody" objects. Used to describe the figures as well as the internal data structure for representing them, Peabody is a language with a powerful and flexible mechanism for representing connectivity between objects, both the joints between individual segments within a figure and arbitrary connections between different figures. Peabody objects are generally comprised of several individual figures, each one a collection of segments. Each segment has a geometry represented by PSURF files that consist of polygons or curved surface patches. Although JACK does not have the capability to create new objects, objects may be created by other geometric modeling programs and then translated into the PSURF format. Environment files are a collection of figures and attributes that may be dynamically moved under the control of an animation file. The animation facilities allow the user to create a sequence of commands that duplicate the movements of a human figure in an environment. Integrated into JACK is a set of vision tools that allow predictions about visibility and legibility. The program is capable of displaying environment perspectives corresponding to what the mannequin would see while in the environment, indicating potential problems with occlusion and visibility. It is also possible to display view cones emanating from the figure's eyes, indicating field of view. Another feature projects the environment onto retina coordinates which gives clues regarding visual angles, acuity and occlusion by the biological blind spots. A retina editor makes it possible to draw onto the retina and project that into 3-dimensional space. Another facility, Reach, causes the mannequin to move a specific portion of its anatomy to a chosen point in space. The Reach facility helps in analyzing problems associated with operator size and other constraints. The 17-segment torso makes it possible to set a figure into realistic postures, simulating human postures closely. The JACK application software is written in C-language for Silicon Graphics workstations running IRIX versions 4.0.5 or higher and is available only in executable form. Since JACK is a copyrighted program (copyright 1991 University of Pennsylvania), this executable may not be redistributed. The recommended minimum hardware configuration for running the executable includes a floating-point accelerator, an 8-megabyte program memory, a high resolution (1280 x 1024) graphics card, and at least 50Mb of free disk space. JACK's data files take up millions of bytes of storage space, so additional disk space is highly recommended. The standard distribution medium for JACK is a .25 inch streaming magnetic IRIX tape cartridge in UNIX tar format. JACK was originally developed in 1988. Jack v4.8 was released for distribution through COSMIC in 1993.

Jack Dymond's Deep Insights

NASA Astrophysics Data System (ADS)

Thomson, R. E.; Delaney, J. R.

2004-12-01

Most people do not know that Jack Dymond was a major influence on several aspects of current deep-sea research. Along with Margaret Leinen and Jack, we were part of the first Alvin dive program on the Endeavour hydrothermal field in 1984. Jack was working with Rick, on a sediment-trap study of the overall carbon fluxes in the vicinity of the Endeavour hydrothermal systems in an effort to address a question that Cindy Lee had posed about the overall carbon production from hydrothermal vents. At the time we were recognizing and naming many of the 20- to 40-meter-high sulfide structures in the Endeavour field (Hulk, Grotto, Dante, Dudley, Bastille), Jack commented that it was a shame that the world could not see these magnificent edifices or watch endlessly awesome black smokers. His feeling was that some vent sites should be converted to National Parks to preserve them from invasion by enthusiastic scientists, yet he clearly had the vision that the public should be given a sense of the grandeur involved locally, as well as the vastness of the 70,000-km ridge-crest system running through every ocean. Within a year we started talking about the RIDGE Program, and Jack was an early and enthusiastic participant in the design and development of RIDGE. Jack was among the first to encourage multi-disciplinary research at the hydrothermal vent sites. Recognizing that deep currents are important to vent processes, he urged physical oceanographers to work with the chemists, biologists, and geologists and was personally responsible for Rick becoming interested in studying vents. We, the co-authors of this abstract, became close friends as a result of having been introduced to each other by Jack. Several years ago, we co-authored the first paper ever written on the possible influence of hydrothermal activity on the circulation of the Europan Ocean, a paper that we here dedicate to the memory of Jack. Finally, it was in part because of Jack's conviction that the world should know more about submarine hydrothermal systems, albeit in a manner we could not then imagine, that eventually led to developing the concept of a cabled ocean observatory. Technology evolved to allow us to design a system that would deliver considerable power and nearly inexhaustible bandwidth to major portions of the ocean basins, enabling an interactive form of oceanography that will be developed within the ORION program and that is now becoming a reality in the form of the Canadian NEPTUNE program. Within five years, these cabled systems will reach into the newly established Canadian Marine Protected area on the Endeavour Segment of the Juan de Fuca Ridge and will bring live-action high-definition video in stereo to anyone capable of logging onto the Internet. Jack Dymond was an inspiration to many communities, one of which was oceanography. We miss him tremendously.

Umatilla River Fish Passage Operations Program, 2003-2004 Annual Report.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bronson, James P.; Duke, Bill B.

2005-08-01

Threemile Falls Dam (Threemile Dam), located near the town of Umatilla, is the major collection and counting point for adult salmonids returning to the Umatilla River. Returning salmon and steelhead were enumerated at Threemile Dam from August 19, 2003 to July 8, 2004. A total of 3,388 summer steelhead (Oncorhynchus mykiss); 1,482 adult, 638 jack, and 2,150 subjack fall chinook (O. tshawytscha); 8,319 adult and 667 jack coho (O. kisutch); and 2,965 adult and 270 jack spring chinook (O. tshawytscha) were counted. All fish were enumerated at the east bank facility. Of the fish counted, 34 summer steelhead and 31more » adult and 9 jack spring chinook were hauled upstream from Threemile Dam. There were 3,166 summer steelhead; 1,076 adult, 554 jack and 2,026 subjack fall chinook; 8,213 adult and 647 jack coho; and 2,152 adult and 174 jack spring chinook either released at, or allowed to volitionally migrate past, Threemile Dam. Also, 121 summer steelhead; 388 adult and 19 jack fall chinook; and 561 adult and 29 jack spring chinook were collected for brood. In addition, 239 spring chinook were collected for the outplanting efforts in the Walla Walla Basin. There were also 25 pair hatchery steelhead adults collected for the progeny maker study. The Westland Canal juvenile facility (Westland), located near the town of Echo at rivermile (RM) 27, is the major collection point for outmigrating juvenile salmonids and steelhead kelts. The canal was open for 184 days between January 12 and July 6, 2004. During that period, fish were bypassed back to the river 173 days and were trapped 10 days. An estimated 44 pounds of juvenile fish were transported from Westland to the Umatilla River boat ramp (RM 0.5). Approximately 84% of the juveniles transported were salmonids. No steelhead kelts were hauled from Westland this year. The Threemile Dam west bank juvenile bypass was opened on February 10, 2004 for outmigration sampling and continued until July 7, 2004 when sampling was discontinued. The juvenile bypass ran at the 5 cfs level until the initiation of Phase I on August 15, 2004. The juvenile trap was operated by the Oregon Department of Fish and Wildlife (ODFW) under the Evaluation of Umatilla Juvenile Salmonid Outmigration Project.« less

Jack Dymond's "Fingerprints" on Sediment Chemistry, Biogeochemical Fluxes, and my Career

NASA Astrophysics Data System (ADS)

Leinen, M.

2004-12-01

I first met Jack Dymond as a graduate student at Oregon State University. He wasn't my thesis advisor. He wasn't even on my committee. But his ever so gentle counsel and his low key advice did much to shape my career, as a student, as a scientist, and later as an administrator of science. At the time, Jack was wading through the analysis of a very large number of surface sediment samples from the Nazca Plate as part of an IDOE project. The number and density of sampling was extraordinary for the time and his work showed that the geochemistry of the sediments could be deconvolved to understand the contributions of sediment sources over the entire plate. I had been planning to analyze DSDP samples from the equatorial Pacific to understand the history of siliceous sedimentation in that region and I began to talk with Jack about how I could use geochemical signatures to estimate the non-biogenic fraction of the sediment. When Jack's Nazca Plate paper came out, Debra Stakes and I decided to analyze all of my sample residues for the same elements that Jack had studied. In the only piece of bad advice that he ever gave me, Jack told me that it was a waste of time because there wouldn't be high enough concentrations of transition metals in the calcareous and siliceous sediments to measure. We insisted and Jack, in typical fashion, agreed to pay for reagents and give us instrument time without charge anyway. The larger than expected concentrations, and the even more surprising match between the accumulation rates of some the metals and the accumulation rates of biogenic sediment were the subject of many discussions, all of which ended in the need for more information on the composition, fluxes and transformations of biogenic sediment in the water column and in recent sediments. This, of course, became another of Jack's specialties: his designs for sediment traps were important contributions to the evolution of this important sampling device. His studies of fluxes in a wide variety of environments - from hydrothermal vent fields to Crater Lake --were critical to the development of modern biogeochemical cycling experiments and thinking. And this, of course, was only one of the fields in which he made major contributions.

Assessment of possible sources of microbiological contamination in the water column and streambed sediment of the Jacks Fork, Ozark National Scenic Riverways, Missouri - Phase III

USGS Publications Warehouse

Davis, Jerri V.; Barr, Miya N.

2006-01-01

In 1998, a 5 river-mile reach of the Jacks Fork was included on Missouri's list of impaired waters as required by Section 303(d) of the Federal Clean Water Act. The identified pollutant on the Jacks Fork was fecal coliform bacteria. The length of the impaired reach was changed to 7 miles on the Missouri 2002 303(d) list because of data indicating the fecal coliform bacteria problem existed over a broader area. The U.S. Geological Survey, in cooperation with the National Park Service, conducted a study to better understand the extent and sources of microbiological contamination within the Jacks Fork from Alley Spring to the mouth, which includes the 7-mile 303(d) reach. Ten sites were sampled from June 2003 through October 2003 and from June 2004 through October 2004. Water-column and streambed sediment samples were collected from main-stem and tributary sites mostly during base-flow conditions during a variety of recreational season river uses and analyzed for fecal coliform and Escherichia coli bacteria. Isolates of Escherichia coli obtained from water samples collected at five sites were submitted for rep-PCR analysis to identify presumptive sources of fecal indicator bacteria in the Jacks Fork. Results indicate that recreational users (including boaters and swimmers) are not the primary source of fecal coliform bacteria in the Jacks Fork; rather, the presence of fecal coliform bacteria is associated with other animals, of which horses are the primary source. Increases in fecal coliform bacteria densities in the Jacks Fork are associated with cross-country horseback trail-riding events.

The effects of rival seminal plasma on sperm velocity in the alternative reproductive tactics of Chinook salmon.

PubMed

Lewis, Jason A; Pitcher, Trevor E

2017-04-01

Sperm competition is prevalent and intense in many animal mating systems, and is a major force driving evolution of such mating systems. The objective of this study was to determine the effect of seminal plasma on sperm velocity of male Chinook salmon (Onchorhynchus tshawytscha), which possesses a mating system with male alternative reproductive tactics and intense sperm competition. Male Chinook salmon either adopt a small, precocious sneaking tactic (jack) or a large, dominant tactic (hooknose). To test whether the seminal plasma can effect sperm velocity amongst sperm competitors, two experiments were done whereby males were paired based upon the alternative tactic each male adopted, with the first experiment consisting of jack-hooknose pairs (N = 16) and the second experiment consisting of jack-jack and hooknose-hooknose pairs (N = 12 and 14, respectively). Within each pair, milt of each male was manipulated such that seminal plasma was removed and swapped between the males in each pair and sperm velocity was measured. Jack seminal plasma caused a significant decrease (∼11.9%) in hooknose sperm velocity while causing a significant increase in jack sperm velocity (∼7%), while alternatively, hooknose seminal plasma had no affect on sperm velocity of jack or other hooknose males. This study shows that rival seminal plasma may affect the outcome of sperm competition between males; males adopting a sneaking tactic, that spawn in a disadvantageous mating position, may be able to compensate for this deficit by being more competitive through the effects of their seminal plasma on their competitor's sperm velocity. Copyright © 2016. Published by Elsevier Inc.

Model Validation Against The Modelers’ Data Archive

DTIC Science & Technology

2014-08-01

completion of the planned Jack Rabbit 2 field trials. The relevant task for the effort addressed here is Task 4 of the current Interagency Agreement, as...readily simulates the Prairie Grass sulfur dioxide plumes. Also, Jack Rabbit II field trials are set to be completed during FY16. Once these data are...available, they will also be used to validate the combined models. This validation may prove to be more useful, as the Jack Rabbit II will release

From Lattice Boltzmann to hydrodynamics in dissipative relativistic fluids

NASA Astrophysics Data System (ADS)

Gabbana, Alessandro; Mendoza, Miller; Succi, Sauro; Tripiccione, Raffaele

2017-11-01

Relativistic fluid dynamics is currently applied to several fields of modern physics, covering many physical scales, from astrophysics, to atomic scales (e.g. in the study of effective 2D systems such as graphene) and further down to subnuclear scales (e.g. quark-gluon plasmas). This talk focuses on recent progress in the largely debated connection between kinetic transport coefficients and macroscopic hydrodynamic parameters in dissipative relativistic fluid dynamics. We use a new relativistic Lattice Boltzmann method (RLBM), able to handle from ultra-relativistic to almost non-relativistic flows, and obtain strong evidence that the Chapman-Enskog expansion provides the correct pathway from kinetic theory to hydrodynamics. This analysis confirms recently obtained theoretical results, which can be used to obtain accurate calibrations for RLBM methods applied to realistic physics systems in the relativistic regime. Using this calibration methodology, RLBM methods are able to deliver improved physical accuracy in the simulation of the physical systems described above. European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 642069.

Influence of thermal fluctuations on ligament break-up: a fluctuating lattice Boltzmann study

NASA Astrophysics Data System (ADS)

Xue, Xiao; Biferale, Luca; Sbragaglia, Mauro; Toschi, Federico

2017-11-01

Thermal fluctuations are essential ingredients in a nanoscale system, driving Brownian motion of particles and capillary waves at non-ideal interfaces. Here we study the influence of thermal fluctuations on the breakup of liquid ligaments at the nanoscale. We offer quantitative characterization of the effects of thermal fluctuations on the Plateau-Rayleigh mechanism that drives the breakup process of ligaments. Due to thermal fluctuations, the droplet sizes after break-up need to be analyzed in terms of their distribution over an ensemble made of repeated experiments. To this aim, we make use of numerical simulations based on the fluctuating lattice Boltzmann method (FLBM) for multicomponent mixtures. The method allows an accurate and efficient simulation of the fluctuating hydrodynamics equations of a binary mixture, where both stochastic viscous stresses and diffusion fluxes are introduced. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No 642069.

Healing of the Acutely Injured Anterior Cruciate Ligament: Functional Treatment with the ACL-Jack, a Dynamic Posterior Drawer Brace

PubMed Central

Reischl, Nikolaus; Rönn, Karolin; Magnusson, Robert A.; Gautier, Emanuel; Jakob, Roland P.

2016-01-01

Background. The injured anterior cruciate ligament (ACL) has a limited healing capacity leading to persisting instability. Hypothesis/Purpose. To study if the application of a brace, producing a dynamic posterior drawer force, after acute ACL injury reduces initial instability. Study Design. Cohort study. Methods. Patients treated with the ACL-Jack brace were compared to controls treated with primary ACL reconstruction und controls treated nonsurgically with functional rehabilitation. Measurements included anterior laxity (Rolimeter), clinical scores (Lysholm, Tegner, and IKDC), and MRI evaluation. Patients were followed up to 24 months. Results. Patients treated with the ACL-Jack brace showed a significant improvement of anterior knee laxity comparable to patients treated with ACL reconstruction, whereas laxity persisted after nonsurgical functional rehabilitation. The failure risk (secondary reconstruction necessary) of the ACL-Jack group was however 21% (18 of 86) within 24 months. Clinical scores were similar in all treatment groups. Conclusion. Treatment of acute ACL tears with the ACL-Jack brace leads to improved anterior knee laxity compared to nonsurgical treatment with functional rehabilitation. PMID:28053787

Modeling of the jack rabbit series of experiments with a temperature based reactive burn model

NASA Astrophysics Data System (ADS)

Desbiens, Nicolas

2017-01-01

The Jack Rabbit experiments, performed by Lawrence Livermore National Laboratory, focus on detonation wave corner turning and shock desensitization. Indeed, while important for safety or charge design, the behaviour of explosives in these regimes is poorly understood. In this paper, our temperature based reactive burn model is calibrated for LX-17 and compared to the Jack Rabbit data. It is shown that our model can reproduce the corner turning and shock desensitization behaviour of four out of the five experiments.

3. Historic American Buildings Survey Jack Maley, Photographer May 31, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

3. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 NORTHEAST (BACK) AND SOUTHEAST (SIDE) ELEVATIONS - Franklin Park Zoo, Elephant House, Seaver Street, Boston, Suffolk County, MA

4. Historic American Buildings Survey Jack Maley, Photographer May 31, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 SOUTHWEST (FRONT) AND SOUTHEAST (SIDE) ELEVATIONS - Franklin Park Zoo, Elephant House, Seaver Street, Boston, Suffolk County, MA

2. Historic American Buildings Survey Jack Maley, Photographer May 31, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 NORTHEAST (BACK) AND NORTHWEST (SIDE) ELEVATIONS - Franklin Park Zoo, Elephant House, Seaver Street, Boston, Suffolk County, MA

1. Historic American Buildings Survey Jack Maley, Photographer May 31, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 SOUTHWEST (FRONT) AND NORTHWEST (SIDE) ELEVATIONS - Franklin Park Zoo, Elephant House, Seaver Street, Boston, Suffolk County, MA

3. Historic American Buildings Survey Jack Maley, Photographer May 31, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

3. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 NORTHEAST (BACK) AND NORTHWEST (SIDE) ELEVATION - Franklin Park Zoo, Feline House, Seaver Street, Boston, Suffolk County, MA

2. Historic American Buildings Survey Jack Maley, Photographer May 31, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 SOUTHWEST (FRONT) AND NORTHWEST (SIDE) ELEVATION - Franklin Park Zoo, Feline House, Seaver Street, Boston, Suffolk County, MA

1. Historic American Buildings Survey Jack Maley, Photographer May 31, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. Historic American Buildings Survey Jack Maley, Photographer May 31, 1978 SOUTHWEST (FRONT) AND SOUTHEAST (SIDE) ELEVATION - Franklin Park Zoo, Feline House, Seaver Street, Boston, Suffolk County, MA

5. 3/4 view looking southwest. Jack Boucher, photographer, 1977 ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

5. 3/4 view looking southwest. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

2. EAST SIDE OF SLAVE QUARTERS (Jack E. Boucher, photgrapher, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. EAST SIDE OF SLAVE QUARTERS (Jack E. Boucher, photgrapher, April/May, 1986) - Felix & Odile Pratt Valle Slave Quarters, Southeast corner of Merchant & Second Streets, Sainte Genevieve, Ste. Genevieve County, MO

19. Jack E, Boucher, Photographer, May 1974. CLOSEUP DETAIL VIEW ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

19. Jack E, Boucher, Photographer, May 1974. CLOSE-UP DETAIL VIEW OF PAULI-LENTICULAR TRUSS SYSTEM, CENTRAL AREA. - Smithfield Street Bridge, Spanning Monongahela River on Smithfield Street, Pittsburgh, Allegheny County, PA

4. View looking north showing bridge in elevation. Jack Boucher, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. View looking north showing bridge in elevation. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

20. Jack E. Boucher, Photogtapher, May 1974. CLOSEUP VIEW OF ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

20. Jack E. Boucher, Photogtapher, May 1974. CLOSE-UP VIEW OF PAULI-LENTICULAR TRUSS SYSTEM, CENTRAL AREA. - Smithfield Street Bridge, Spanning Monongahela River on Smithfield Street, Pittsburgh, Allegheny County, PA

7. Straighton view of east portal. Jack Boucher, photographer, 1977 ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

7. Straight-on view of east portal. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

9. View looking east down cantilevered walkway. Jack Boucher, photographer, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

9. View looking east down cantilevered walkway. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

21 CFR 133.153 - Monterey cheese and monterey jack cheese.

Code of Federal Regulations, 2013 CFR

2013-04-01

... a lactic acid-producing bacterial culture. One or more of the clotting enzymes specified in... “monterey cheese” or alternatively, “monterey jack cheese”. (d) Label declaration. Each of the ingredients...

21 CFR 133.153 - Monterey cheese and monterey jack cheese.

Code of Federal Regulations, 2012 CFR

2012-04-01

... a lactic acid-producing bacterial culture. One or more of the clotting enzymes specified in... “monterey cheese” or alternatively, “monterey jack cheese”. (d) Label declaration. Each of the ingredients...

21 CFR 133.153 - Monterey cheese and monterey jack cheese.

Code of Federal Regulations, 2014 CFR

2014-04-01

... a lactic acid-producing bacterial culture. One or more of the clotting enzymes specified in... “monterey cheese” or alternatively, “monterey jack cheese”. (d) Label declaration. Each of the ingredients...

Nutrient accumulation in planted red and jack pine.

Treesearch

David H. Alban

1988-01-01

Compares nutrient accumulation in adjacent plantations of red and jack pine in the upper Great Lakes. Describes equations developed to predict biomass and nutrient accumulation based on stand basal area and height.

Application of metal magnetic memory technology on defects detection of jack-up platform

NASA Astrophysics Data System (ADS)

Xu, Changhang; Cheng, Liping; Xie, Jing; Yin, Xiaokang; Chen, Guoming

2016-02-01

Metal magnetic memory test (MMMT), which is an effective way in evaluating early damages of ferrimagnets, can determine the existence of material stresses concentration and premature defects. As one of offshore oil exploration and development equipment, jack-up platform always generate stress concentration during its life-cycle due to complicated loading condition and the hash marine environment, which will decline the bearing capacity and cause serious consequences. The paper conducts in situ experiments of defects detection on some key structural components of jack-up platform using MMMT. The signals acquired by MMM-System are processed for feature extraction to evaluate the severity of structure stress concentration. The results show that the method presented in this paper based on MMMT can provide an effective and convenient way of defect detection and structural health monitoring for Jack-up Platform.

The lodgepole × jack pine hybrid zone in Alberta, Canada: a stepping stone for the mountain pine beetle on its journey East across the boreal forest?

PubMed

Lusebrink, Inka; Erbilgin, Nadir; Evenden, Maya L

2013-09-01

Historical data show that outbreaks of the tree killing mountain pine beetle are often preceded by periods of drought. Global climate change impacts drought frequency and severity and is implicated in the range expansion of the mountain pine beetle into formerly unsuitable habitats. Its expanded range has recently reached the lodgepole × jack pine hybrid zone in central Alberta, Canada, which could act as a transition from its historical lodgepole pine host to a jack pine host present in the boreal forest. This field study tested the effects of water limitation on chemical defenses of mature trees against mountain pine beetle-associated microorganisms and on beetle brood success in lodgepole × jack pine hybrid trees. Tree chemical defenses as measured by monoterpene emission from tree boles and monoterpene concentration in needles were greater in trees that experienced water deficit compared to well-watered trees. Myrcene was identified as specific defensive compound, since it significantly increased upon inoculation with dead mountain pine beetles. Beetles reared in bolts from trees that experienced water deficit emerged with a higher fat content, demonstrating for the first time experimentally that drought conditions benefit mountain pine beetles. Further, our study demonstrated that volatile chemical emission from tree boles and phloem chemistry place the hybrid tree chemotype in-between lodgepole pine and jack pine, which might facilitate the host shift from lodgepole pine to jack pine.

14 CFR 23.507 - Jacking loads.

Code of Federal Regulations, 2013 CFR

2013-01-01

...) Vertical-load factor of 1.35 times the static reactions. (2) Fore, aft, and lateral load factors of 0.4 times the vertical static reactions. (b) The horizontal loads at the jack points must be reacted by...

14 CFR 23.507 - Jacking loads.

Code of Federal Regulations, 2010 CFR

2010-01-01

...) Vertical-load factor of 1.35 times the static reactions. (2) Fore, aft, and lateral load factors of 0.4 times the vertical static reactions. (b) The horizontal loads at the jack points must be reacted by...

14 CFR 23.507 - Jacking loads.

Code of Federal Regulations, 2012 CFR

2012-01-01

...) Vertical-load factor of 1.35 times the static reactions. (2) Fore, aft, and lateral load factors of 0.4 times the vertical static reactions. (b) The horizontal loads at the jack points must be reacted by...

A Heavy-Duty Jack for a Giant Task

NASA Image and Video Library

2010-11-03

A major refurbishment of the giant Mars antenna at NASA Deep Space Network Goldstone Deep Space Communications Complex in California Mojave Desert required workers to jack up millions of pounds of delicate scientific equipment.

14 CFR 23.507 - Jacking loads.

Code of Federal Regulations, 2011 CFR

2011-01-01

...) Vertical-load factor of 1.35 times the static reactions. (2) Fore, aft, and lateral load factors of 0.4 times the vertical static reactions. (b) The horizontal loads at the jack points must be reacted by...

Love and Life without Gluten

MedlinePlus

... Jack approach celiac disease together Photo: Rose Perry Rose’s story When Rose Perry was in high school, ... live differently and that’s kind of a shock.” Rose and Jack’s story Rose and Jack met in ...

Regeneration of Cutover Jack Pine Stands

Treesearch

John W. Benzie

1968-01-01

Jack pine can be regenerated on mineral soil seedbeds by scattering cone-bearing branches or repellent-treated seed. On some areas where competition develops, the seedlings may need to be released between the third and fifth years.

Human Factors Model

NASA Technical Reports Server (NTRS)

1993-01-01

Jack is an advanced human factors software package that provides a three dimensional model for predicting how a human will interact with a given system or environment. It can be used for a broad range of computer-aided design applications. Jack was developed by the computer Graphics Research Laboratory of the University of Pennsylvania with assistance from NASA's Johnson Space Center, Ames Research Center and the Army. It is the University's first commercial product. Jack is still used for academic purposes at the University of Pennsylvania. Commercial rights were given to Transom Technologies, Inc.

4. Unit 4 Turbine Pit Oil Jacking Pump and Wicket ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. Unit 4 Turbine Pit Oil Jacking Pump and Wicket Gate Linkages, view to the north. The jacking pump, located along the wall on the left side of photograph, is used for pumping oil to lift the thrust bearing prior to starting the unit. Note the wicket gate linkages attached to the operating ring and visible in the lower center of the photograph. - Washington Water Power Clark Fork River Cabinet Gorge Hydroelectric Development, Powerhouse, North Bank of Clark Fork River at Cabinet Gorge, Cabinet, Bonner County, ID

LOUSMA, JACK R. - WATER SURVIVAL TRAINING - FL

NASA Image and Video Library

1978-07-31

S78-34037 (31 July 1978) --- Astronaut Jack R. Lousma, geared with a parachute, is pulled along behind a boat in Gulf waters at Homestead Air Force Base in Florida during a water survival training course attended by several NASA astronauts. The overall course is designed to familiarize astronauts with proper procedures to take in the event of ejection from an aircraft over water. Photo credit: NASA (NOTE: Since this photograph was made, astronaut Jack R. Lousma was named commander of STS-3, scheduled for launch in early spring of 1982.)

Learning to Live with Neuromuscular Disease: A Message for Parents

MedlinePlus

... Little League team and taking him to Phillies games. I pictured myself watching Jack perform in his ... with his schoolwork. Jack hopes for new computer games. He hopes we’ll take him places The ...

Follow up of injected polyurethane slab jacking.

DOT National Transportation Integrated Search

2003-08-01

GLENN JACKSON BRIDGE FOLLOW-UP REPORT The elevation monitoring in the report entitled Injected Polyurethane Slab Jacking (Soltesz 2000) is continued in this current report. The elevations of the concrete slabs are being monitored to see if polyuretha...

50 CFR 665.101 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-10-01

... palu-gutusiliva red snapper, silvermouth Aphareus rutilans. asoama gray snapper, jobfish Aprion virescens. sapoanae giant trevally, jack Caranx ignobilis. tafauli black trevally, jack Caranx lugubris. fausi blacktip grouper Epinephelus fasciatus. papa, velo lunartail grouper Variola louti. palu malau red...

50 CFR 665.101 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-10-01

... palu-gutusiliva red snapper, silvermouth Aphareus rutilans. asoama gray snapper, jobfish Aprion virescens. sapoanae giant trevally, jack Caranx ignobilis. tafauli black trevally, jack Caranx lugubris. fausi blacktip grouper Epinephelus fasciatus. papa, velo lunartail grouper Variola louti. palu malau red...

50 CFR 665.101 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-10-01

... palu-gutusiliva red snapper, silvermouth Aphareus rutilans. asoama gray snapper, jobfish Aprion virescens. sapoanae giant trevally, jack Caranx ignobilis. tafauli black trevally, jack Caranx lugubris. fausi blacktip grouper Epinephelus fasciatus. papa, velo lunartail grouper Variola louti. palu malau red...

50 CFR 665.101 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-10-01

... palu-gutusiliva red snapper, silvermouth Aphareus rutilans. asoama gray snapper, jobfish Aprion virescens. sapoanae giant trevally, jack Caranx ignobilis. tafauli black trevally, jack Caranx lugubris. fausi blacktip grouper Epinephelus fasciatus. papa, velo lunartail grouper Variola louti. palu malau red...

Modernizing the Military Retirement System

DTIC Science & Technology

2011-05-01

Patrick Gross, David Langstaff, Philip Odeen, Mark Ronald, Robert Stein, and Jack Zoeller. Catherine Whittington served as the Board Staff Analyst...Chair) Patrick Gross David Langstaff Philip Odeen Mark Ronald Robert Stein Jack Zoeller DBB Staff Analyst Catherine Whittington Methodology

Single step purification of concanavalin A (Con A) and bio-sugar production from jack bean using glucosylated magnetic nano matrix.

PubMed

Kim, Ho Myeong; Cho, Eun Jin; Bae, Hyeun-Jong

2016-08-01

Jack bean (JB, Canavalia ensiformis) is the source of bio-based products, such as proteins and bio-sugars that contribute to modern molecular biology and biomedical research. In this study, the use of jack bean was evaluated as a source for concanavalin A (Con A) and bio-sugar production. A novel method for purifying Con A from JBs was successfully developed using a glucosylated magnetic nano matrix (GMNM) as a physical support, which facilitated easy separation and purification of Con A. In addition, the enzymatic conversion rate of 2% (w/v) Con A extracted residue to bio-sugar was 98.4%. Therefore, this new approach for the production of Con A and bio-sugar is potentially useful for obtaining bio-based products from jack bean. Copyright © 2016 Elsevier Ltd. All rights reserved.

New drilling rigs

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tubb, M.

1981-02-01

Friede and Goldman Ltd. of New Orleans, Louisiana has a successful drilling rig, the L-780 jack-up series. The triangular-shaped drilling vessel measures 180 x 176 ft. and is equipped with three 352 ft legs including spud cans. It is designed to work in up to 250 ft waters and drill to 20,000 ft depths. The unit is scheduled to begin initial drilling operations in the Gulf of Mexico for Arco. Design features are included for the unit. Davie Shipbuilding Ltd. has entered the Mexican offshore market with the signing of a $40,000,000 Canadian contract for a jack-up to work inmore » 300 ft water depths. Baker Marine Corporation has contracted with the People's Republic of China for construction of two self-elevating jack-ups. The units will be built for Magnum Marine, headquartered in Houston. Details for the two rigs are given. Santa Fe International Corporation has ordered a new jack-up rig to work initially in the Gulf of Suez. The newly ordered unit, Rig 136, will be the company's fourth offshore drilling rig now being built in the Far East. Temple Drilling Company has signed a construction contract with Bethlehem Steel for a jack-up to work in 200 ft water depths. Penrod Drilling Company has ordered two additional cantilever type jack-ups for Hitachi Shipbuilding and Engineering Co. Ltd. of Japan. Two semi-submersibles, capable of working in up to 2000 ft water depths, have been ordered by two Liberian companies. Details for these rigs are included. (DP)« less

Manager's handbook for jack pine in the north central states.

Treesearch

John W. Benzie

1977-01-01

Provides a key for the resource manager to use in choosing silvicultural practices for the management of jack pine. Control of stand composition, growth, and stand establishment for timber production, water, wildlife, and recreation are discussed.

29 CFR 1926.305 - Jacks-lever and ratchet, screw, and hydraulic.

Code of Federal Regulations, 2010 CFR

2010-07-01

... ADMINISTRATION, DEPARTMENT OF LABOR (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION Tools-Hand and... of slippage of the metal cap of the jack, a wood block shall be placed between the cap and the load...

HOW to Identify and Control Stem Rusts of Jack Pine

Treesearch

Kathryn Robbins; Dale K. Smeltzer; D. W. French

Damage to jack pine caused by rust fungi includes growth reduction, cankers, death (by girdling or wind breakage), and creation of entryways for other fungi and insects. Seedlings and saplings are more seriously affected than older trees.

Matrix models and stochastic growth in Donaldson-Thomas theory

DOE Office of Scientific and Technical Information (OSTI.GOV)

Szabo, Richard J.; Tierz, Miguel; Departamento de Analisis Matematico, Facultad de Ciencias Matematicas, Universidad Complutense de Madrid, Plaza de Ciencias 3, 28040 Madrid

We show that the partition functions which enumerate Donaldson-Thomas invariants of local toric Calabi-Yau threefolds without compact divisors can be expressed in terms of specializations of the Schur measure. We also discuss the relevance of the Hall-Littlewood and Jack measures in the context of BPS state counting and study the partition functions at arbitrary points of the Kaehler moduli space. This rewriting in terms of symmetric functions leads to a unitary one-matrix model representation for Donaldson-Thomas theory. We describe explicitly how this result is related to the unitary matrix model description of Chern-Simons gauge theory. This representation is used tomore » show that the generating functions for Donaldson-Thomas invariants are related to tau-functions of the integrable Toda and Toeplitz lattice hierarchies. The matrix model also leads to an interpretation of Donaldson-Thomas theory in terms of non-intersecting paths in the lock-step model of vicious walkers. We further show that these generating functions can be interpreted as normalization constants of a corner growth/last-passage stochastic model.« less

Inverse participation ratios in the XX spin chain

NASA Astrophysics Data System (ADS)

Tsukerman, Emmanuel

2017-03-01

We continue the study of the inverse participation ratios (IPRs) of the XXZ Heisenberg spin chain initiated by Stéphan, Furukawa, Misguich, and Pasquier (2009) and continued by Misguich, Pasquier, and Luck (2016) by focusing on the case of the XX Heisenberg spin chain. For the ground state, Stéphan et al. note that calculating the IPR is equivalent to Dyson's constant term ex-conjecture. We express the IPRs of excited states as an apparently new "discrete" Hall inner product. We analyze this inner product using the theory of symmetric functions (Jack polynomials, Schur polynomials, the standard Hall inner product, and ωq ,t) to determine some exact expressions and asymptotics for IPRs. We show that IPRs can be indexed by partitions, and asymptotically the IPR of a partition is equal to that of the conjugate partition. We relate the IPRs to two other models from physics, namely, the circular symplectic ensemble of Dyson and the Dyson-Gaudin two-dimensional Coulomb lattice gas. Finally, we provide a description of the IPRs in terms of a signed count of diagonals of permutohedra.

Jack Hills, Australia

NASA Image and Video Library

2009-06-02

This image acquired by NASA Terra spacecraft, shows the oldest material on Earth which has yet been dated by man is a zircon mineral of 4.4 billion years old from a sedimentary gneiss in the Jack Hills of the Narre Gneiss Terrane of Australia.

5. View Looking Northwest Showing (Left to Right) Stacked Tubing ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

5. View Looking Northwest Showing (Left to Right) Stacked Tubing , Well Head, Pumping Jack, and Regulator (Right Foreground) - Heckert Oil Pumping Jack, 0.6 mile North of Connoquenessing Creek, 0.15 mile East of Powder Mill Creek, Renfrew, Butler County, PA

Ten-year height growth variation in Lake States jack pine

Treesearch

James P. King

1966-01-01

Jack pine (Pinus banksiana Lamb.) is one of the major pulpwood producing species in the Lake States. It is found on a variety of sites, but its outstanding characteristic is its ability to make early rapid growth on dry sandy soils.

Heavy duty precision leveling jacks expedite setup time on horizontal boring mill

NASA Technical Reports Server (NTRS)

Dellenbaugh, W.; Jones, C.

1966-01-01

Leveling jack is a precise alignment tool which expedites the setup of components or assemblies up to 2500 pounds on horizontal boring mills. This tool eliminates the necessity of wedges and blocks to shim the components to proper position.

50 CFR 32.34 - Iowa.

Code of Federal Regulations, 2014 CFR

2014-10-01

..., bobwhite quail, gray partridge, rabbit (cottontail and jack), squirrel (fox and gray), groundhog, raccoon... pheasant, gray partridge, rabbit (cottontail and jack), squirrel (fox and gray), groundhog, raccoon... rabbit, gray and fox squirrel, and fall wild turkey (2 weeks within the season) on designated areas of...

Fatty Acid Composition of Novel Host Jack Pine Do Not Prevent Host Acceptance and Colonization by the Invasive Mountain Pine Beetle and Its Symbiotic Fungus

PubMed Central

Ishangulyyeva, Guncha; Najar, Ahmed; Curtis, Jonathan M.

2016-01-01

Fatty acids are major components of plant lipids and can affect growth and development of insect herbivores. Despite a large literature examining the roles of fatty acids in conifers, relatively few studies have tested the effects of fatty acids on insect herbivores and their microbial symbionts. Particularly, whether fatty acids can affect the suitability of conifers for insect herbivores has never been studied before. Thus, we evaluated if composition of fatty acids impede or facilitate colonization of jack pine (Pinus banksiana) by the invasive mountain pine beetle (Dendroctonus ponderosae) and its symbiotic fungus (Grosmannia clavigera). This is the first study to examine the effects of tree fatty acids on any bark beetle species and its symbiotic fungus. In a novel bioassay, we found that plant tissues (hosts and non-host) amended with synthetic fatty acids at concentrations representative of jack pine were compatible with beetle larvae. Likewise, G. clavigera grew in media amended with lipid fractions or synthetic fatty acids at concentrations present in jack pine. In contrast, fatty acids and lipid composition of a non-host were not suitable for the beetle larvae or the fungus. Apparently, concentrations of individual, rather than total, fatty acids determined the suitability of jack pine. Furthermore, sampling of host and non-host tree species across Canada demonstrated that the composition of jack pine fatty acids was similar to the different populations of beetle’s historical hosts. These results demonstrate that fatty acids composition compatible with insect herbivores and their microbial symbionts can be important factor defining host suitability to invasive insects. PMID:27583820

Using Transom Jack in the Human Engineering Analysis of the Materials Science Research Rack-1 and Quench Module Insert

NASA Technical Reports Server (NTRS)

Dunn, Mariea C.; Alves, Jeffrey R.; Hutchinson, Sonya L.

1999-01-01

This paper describes the human engineering analysis performed on the Materials Science Research Rack-1 and Quench Module Insert (MSRR-1/QMI) using Transom Jack (Jack) software. The Jack software was used to model a virtual environment consisting of the MSRR-1/QMI hardware configuration and human figures representing the 95th percentile male and 5th percentile female. The purpose of the simulation was to assess the human interfaces in the design for their ability to meet the requirements of the Pressurized Payloads Interface Requirements Document - International Space Program, Revision C (SSP 57000). Jack was used in the evaluation because of its ability to correctly model anthropometric body measurements and the physical behavior of astronauts working in microgravity, which is referred to as the neutral body posture. The Jack model allows evaluation of crewmember interaction with hardware through task simulation including but not limited to collision avoidance behaviors, hand/eye coordination, reach path planning, and automatic grasping to part contours. Specifically, this virtual simulation depicts the human figures performing the QMI installation and check-out, sample cartridge insertion and removal, and gas bottle drawer removal. These tasks were evaluated in terms of adequate clearance in reach envelopes, adequate accessibility in work envelopes, appropriate line of sight in visual envelopes, and accommodation of full size range for male and female stature maneuverability. The results of the human engineering analysis virtual simulation indicate that most of the associated requirements of SSP 57000 were met. However, some hardware design considerations and crew procedures modifications are recommended to improve accessibility, provide an adequate work envelope, reduce awkward body posture, and eliminate permanent protrusions.

A-jacks and Aquawrap installations in Utah : scour revetment performance evaluation, final report, December 2009.

DOT National Transportation Integrated Search

2009-12-01

This is a performance evaluation report for A-Jacks, an articulated concrete block designed to protect bridge elements exposed to the river scouring forces, and for Aquawrap, a glass fiber reinforced polymer designed to protect and strengthen bridge ...

Full scale load testing of sand-jacks.

DOT National Transportation Integrated Search

2006-06-01

A sand-jack is a sand filled container used as a component of cast-in-place bridge false-work. The sand filler facilitates the removal of the false-work by allowing slow and controlled lowering of the bracing that has become wedged beneath the new br...

Stereo photos for evaluating jack pine slash fuels.

Treesearch

Richard W. Blank

1982-01-01

Describes a quick, visual method for estimating jack pine logging residue and other fuels. The method uses a series of large color photographs and stereo pairs as well as data sheets that detail size classes and loadings of the logging slash and other fuels.

Cross-Reactivity of Polyclonal Antibodies against Canavalia ensiformis (Jack Bean) Urease and Helicobacter pylori Urease Subunit A Fragments.

PubMed

Kaminski, Zbigniew Jerzy; Relich, Inga; Konieczna, Iwona; Kaca, Wieslaw; Kolesinska, Beata

2018-01-01

Overlapping decapeptide fragments of H. pylori urease subunit A (UreA) were synthesized and tested with polyclonal antibodies against Canavalia ensiformis (Jack bean) urease. The linear epitopes of UreA identified using the dot blot method were then examined using epitope mapping. For this purpose, series of overlapping fragments of UreA, frameshifted ± four amino acid residues were synthesized. Most of the UreA epitopes which reacted with the Jack bean urease polyclonal antibodies had been recognized in previous studies by monoclonal antibodies against H. pylori urease. Fragments 11 - 24, 21 - 33, and 31 - 42 were able to interact with the Jack bean urease antibodies, giving stable immunological complexes. However, the lack of recognition by these antibodies of all the components in the peptide map strongly suggests that a non-continuous (nonlinear) epitope is located on the N-terminal domain of UreA. © 2018 Wiley-VHCA AG, Zurich, Switzerland.

Water-deficit and fungal infection can differentially affect the production of different classes of defense compounds in two host pines of mountain pine beetle.

PubMed

Erbilgin, Nadir; Cale, Jonathan A; Lusebrink, Inka; Najar, Ahmed; Klutsch, Jennifer G; Sherwood, Patrick; Enrico Bonello, Pierluigi; Evenden, Maya L

2017-03-01

Bark beetles are important agents of tree mortality in conifer forests and their interaction with trees is influenced by host defense chemicals, such as monoterpenes and phenolics. Since mountain pine beetle (Dendroctonus ponderosae Hopkins) has expanded its host range from lodgepole pine (Pinus contorta Doug. ex Loud. (var. latifolia Engelm.))-dominated forests to the novel jack pine (Pinus banksiana Lamb.) forests in western Canada, studies investigating the jack pine suitability as a host for this beetle have exclusively focused on monoterpenes, and whether phenolics affect jack pine suitability to mountain pine beetle and its symbiotic fungus Grosmannia clavigera is unknown. We investigated the phenolic and monoterpene composition in phloem and foliage of jack and lodgepole pines, and their subsequent change in response to water deficit and G. clavigera inoculation treatments. In lodgepole pine phloem, water deficit treatment inhibited the accumulation of both the total and richness of phenolics, but had no effect on total monoterpene production or richness. Fungal infection also inhibited the total phenolic production and had no effect on phenolic or monoterpene richness, but increased total monoterpene synthesis by 71%. In jack pine phloem, water deficit treatment reduced phenolic production, but had no effect on phenolic or monoterpene richness or total monoterpenes. Fungal infection did not affect phenolic or monoterpene production. Lesions of both species contained lower phenolics but higher monoterpenes than non-infected phloem in the same tree. In both species, richness of monoterpenes and phenolics was greater in non-infected phloem than in lesions. We conclude that monoterpenes seem to be a critical component of induced defenses against G. clavigera in both jack and lodgepole pines; however, a lack of increased monoterpene response to fungal infection is an important evolutionary factor defining jack pine suitability to the mountain pine beetle invasion in western Canada. © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

77 FR 14411 - Federal Property Suitable as Facilities To Assist the Homeless

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-09

... Energy, Office of Engineering & Construction Management, MA-50, 1000 Independence Ave. SW., Washington... Landholding Agency: Air Force Property Number: 18201210016 Status: Underutilized Directions: 1076 Jack's...: 1077 Jack's Valley Rd. Comments: 512 sq. ft.; current use: vacant; bldg. has no heat Kitchen Center...

Astronaut Jack Fischer at Rock Creek Park

NASA Image and Video Library

2017-11-04

NASA astronaut Jack Fischer answers a question from the audience, Saturday, Nov. 4, 2017 at the Rock Creek Park Nature Center and Planetarium in Washington, DC. During his 136 day mission aboard the ISS, Fischer conducted two spacewalks and hundreds of scientific experiments. Photo Credit: (NASA/Joel Kowsky)

77 FR 47065 - Central Arizona Project-Rate Order No. WAPA-158

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-07

... to (602) 605-2490, attention: Jack Murray. Western will post official comments received via letter... period to ensure they are considered in Western's decision process. FOR FURTHER INFORMATION CONTACT: Mr. Jack Murray, Rates Manager, Desert Southwest Customer Service Regional Office, Western Area Power...

Jack Stenner: The Lexile King.

ERIC Educational Resources Information Center

Webster, Linda J.

2000-01-01

Traces the career of Jack Stenner. Stenner made the empirical discovery that observable readability could be entirely predicted from word familiarity and sentence length, and applied this "Lexile Framework"(R) to books and readers. Discusses the use of the Lexile Framework as a way to target specific readers. (SLD)

Astronaut Jack R. Lousma and family

NASA Image and Video Library

1971-12-01

S72-31432 (November 1972) --- Astronaut Jack R. Lousma poses for a family portrait with his wife, Gratia Kay, and their three children, left to right, Mary 4; Timothy, 9; and Matthew, 7. Lousma is the pilot for the Skylab 3 or second manned Skylab mission. Photo credit: NASA

Cluster analysis on a sphere: Application to magnetizations from metasediments of the Jack Hills, Western Australia

NASA Astrophysics Data System (ADS)

Bono, Richard K.; Tarduno, John A.; Dare, Matthew S.; Mitra, Gautam; Cottrell, Rory D.

2018-02-01

Metasediments of the Jack Hills contain the oldest known terrestrial minerals in the form of zircons nearly 4.4 billion years old. Paleointensity data from these zircons provide evidence for a Hadean geodynamo as old as 4.2 billion years old. Given the importance of these zircons for constraining the earliest history of the core, it is vital to understand the fidelity of the zircon record. A fundamental aspect providing context for the preservation of primary magnetic signals is the nature of overprints predicted to have been imparted on rocks of the Jack Hills due to Archean to Proterozoic metamorphic events. To be viable magnetic records of a Hadean geodynamo, zircon magnetization directions should differ from these secondary magnetizations. To evaluate these secondary magnetizations, we report paleomagnetic analyses of a comprehensive sampling of 68 quartzite cobble-sized clasts from the Jack Hills metasediments ∼0.5 to 1.0 km from the Discovery Site (which has yielded the oldest zircons and paleofield estimates). While application of standard paleomagnetic tests suggests that the ensemble of cobble directions cannot be distinguished from those drawn from a random distribution, a new cluster analysis of directions on a sphere and non-parametric resampling approaches reveal significant directions amongst subsets of the data. One, isolated at the lowest temperature analyzed [200 to 300 °C, Declination (Dec.) = 316.8°, Inclination (Inc.) = - 51.1 °] appears to be dominated by the present day field. Another, isolated at higher (but still relatively low unblocking temperatures that we call "intermediate", of ∼350-500 °C, Dec. = 243.8°, Inc. = 9.5°) agrees with a magnetic overprint isolated from the secondary Cr-Fe mica fuchsite isolated from the Jack Hills Discovery site, passing a field test at the 80% confidence level. No evidence is found in our data, or in the data of others collected on similar Jack Hills lithologies, for a widespread 1 Ga remagnetization event. Instead, we interpret the most prevalent secondary magnetization of the quartzite (i.e., intermediate unblocking) and the fuchsite characteristic remanent magnetization to be ∼2.65 Ga in age, coincident with peak metamorphism (as high as ca. 475 °C) of the Jack Hills. The presence of this distinct secondary magnetization, its difference from that recorded by Jack Hills zircons at high unblocking temperatures, and the lack of a dominant remagnetization direction at high unblocking temperatures in the cobble data (the expected result for a primary magnetization), lends further support to the fidelity of the Hadean geomagnetic record. The presence of the secondary magnetization also lends support to the conclusion that most of the Jack Hills metasediments were deposited in the Archean, with only minor reworking and potential tectonic interleaving of Proterozoic components. Overall, the application of the new directional cluster analysis presented here has the potential to reveal magnetic directions in highly scattered data sets, typical of weakly magnetized coarse-grained sedimentary rocks

Modeling and Simulation of an Unmanned Ground Vehicle Power System

DTIC Science & Technology

2014-08-07

Modeling and Simulation of an Unmanned Ground Vehicle Power System John Broderick Jack Hartner Dawn Tilbury Ella Atkins Sponsored by U.S...5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) John Broderick ; Jack Hartner; Dawn Tilbury; Ella Atkins 5d. PROJECT

The late Quaternary history of lodgepole and jack pines

Treesearch

William B. Critchfield

1985-01-01

Lodgepole and jack pines (Pinus contorta Dougl. ex. Loud, and Pinus banksiana Lamb.), components of the North American boreal forest, have pioneering roles after major disturbances such as fire or glaciation. These species are closely related and hybridize in western Canada, but their fossil records and contemporary variation...

9. Historic American Buildings Survey; Jack E. Boucher, photographer; Sept. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

9. Historic American Buildings Survey; Jack E. Boucher, photographer; Sept. 1969 Copy of measured drawing, 1st floor plan, 1925 (From file of Wash. D.C. Board of Education, office of buildings and grounds) - Jackson (Public) School, R Street & Avon Place Northwest, Washington, District of Columbia, DC

Jack Michael's Motivation

ERIC Educational Resources Information Center

Miguel, Caio F.

2013-01-01

Among many of Jack Michael's contributions to the field of behavior analysis is his behavioral account of motivation. This paper focuses on the concept of "motivating operation" (MO) by outlining its development from Skinner's (1938) notion of "drive." Conceptually, Michael's term helped us change our focus on…

"Delays and Vexation": Jack London and the Russo-Japanese War.

ERIC Educational Resources Information Center

Sweeney, Michael S.

1998-01-01

Contributes to scholarship on journalism history and censorship by discussing Jack London's efforts as a war correspondent to cover the Russo-Japanese War in Korea and Manchuria in 1904. Focuses on the difficulties he encountered as a result of systematic and highly restrictive censorship by the Japanese. (SR)

The Impact of Unmanned Aerial Systems on Joint Operational Art

DTIC Science & Technology

2012-05-17

Reconnaissance Drones (Fallbrook, CA: Aero Publishers, 1982), 53, 56-57. 13 Jack Raymond, "Pilotless Planers -Are They Effective Spies?" New York Times, 22...Press, 2001. Peebles, Curtis. Dark Eagles: A History ofTop Secret US Aircraft Programs. Novato, CA: Presidio, 1995. Raymond, Jack. "Pilotless Planers

Sphaeropsis Collar Rot of Red and Jack Pines

Treesearch

Glen Stanosz; Linda Haugen; Joseph O' Brien

2002-01-01

Sphaeropsis collar rot has been detected in red and jack pines in Wisconsin and Michigan, and it could be affecting pines in other states. This disease may be less familiar than Sphaeropsis shoot blight, but both the incidence and the distribution of collar rot appear to be increasing.

Filling Holes with Words: An Interview with Jack Gantos.

ERIC Educational Resources Information Center

Shoemaker, Joel

2003-01-01

This interview with Jack Gantos, an author who writes books for young adults, focuses on how he uses his own personal experiences in his books. Discusses memories of his father and his childhood, drug-smuggling activities and the resulting jail time, and student reactions to his books. (LRW)

BOREAS TE-12 SSA Shoot Geometry Data

NASA Technical Reports Server (NTRS)

Hall, Forrest G. (Editor); Curd, Shelaine (Editor); Walter-Shea, Elizabeth A.; Mesarch, Mark A.; Cheng, L.; Yang, Litao

2000-01-01

The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-12 (Terrestrial Ecology) team collected shoot geometry data in 1993 and 1994 from aspen, jack pine, and black spruce trees. Collections were made at the Southern Study Area Nipawin Fen Site (SSA FEN), Young Jack Pine (YJP), Old Jack Pine (OJP), Old Aspen (OA), Young Aspen (YA), Mixed Site (MIX), and Old Black Spruce (OBS) sites. A caliper was used to measure shoot and needle lengths and widths. A volume displacement procedure was used to measure the weight of the shoot or twig submerged in water. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

Kraft pulp from budworm-infested jack pine

Treesearch

J. Y. Zhu; Gary C. Myers

2006-01-01

This study evaluated the quality of kraft pulp from bud-worm-infested jack pine. The logs were classified as merchantable live, suspect, or merchantable dead. Raw materials were evaluated through visual inspection, analysis of the chemical composition, SilviScan measurement of the density, and measurement of the tracheid length. Unbleached pulps were then refined using...

Jack Mezirow's Conceptualisation of Adult Transformative Learning: A Review

ERIC Educational Resources Information Center

Calleja, Colin

2014-01-01

This paper traces the evolution of Jack Mezirow's transformative learning theory and its conceptualisation. It discusses the three major influences, namely Thomas Khun's philosophical conception of paradigm, Freire's conception of conscientisation and consciousness growth, and Habermas' domains of learning and the discussion of…

Like Father, Like Doctor

ERIC Educational Resources Information Center

Henderson, Nancy

2008-01-01

In this article, the author profiles Dr. Jack Kessler, chair of the Department of Neurology at Northwestern University Feinberg School of Medicine. Dr. Jack Kessler is a renowned stem cell expert and researcher. For years, Dr. Kessler had been researching ways to repair damage to the nervous system. It was not until his own daughter became…

AmeriFlux CA-SJ1 Saskatchewan - Western Boreal, Jack Pine forest harvested in 1994

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barr, Alan

This is the AmeriFlux version of the carbon flux data for the site CA-SJ1 Saskatchewan - Western Boreal, Jack Pine forest harvested in 1994. Site Description - 53.908408° N, 104.655885° W, elavation of 580m, BERMS climate and flux measurements began in Spring 2001

AmeriFlux CA-SJ2 Saskatchewan - Western Boreal, Jack Pine forest harvested in 2002

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barr, Alan; Black, Andrew T.

This is the AmeriFlux version of the carbon flux data for the site CA-SJ2 Saskatchewan - Western Boreal, Jack Pine forest harvested in 2002. Site Description - 53.944737° N, 104.649340° W, BERMS flux and climate measurements to begin by Mar 2003

Impacts of fiber orientation and milling on observed crystallinity in jack pine

Treesearch

Umesh P. Agarwal; Sally A. Ralph; Richard S. Reiner; Roderquita K. Moore; Carlos Baez

2014-01-01

Influences of fiber orientation and milling on wood cellulose crystallinity were studied using jack pine wood. The fiber orientation effects were measured by sampling rectangular wood blocks in radial, tangential, and cross-sectional orientations. The influence of milling was studied by analyzing the unsieved and sieved milled wood fractions (all

We Are All in the Dumps with Jack and Guy: Two Nursery Rhymes with Pictures by Maurice Sendak.

ERIC Educational Resources Information Center

Neumeyer, Peter F.

1994-01-01

Describes and critiques Maurice Sendak's newest book, "We Are All in the Dumps with Jack and Guy," which includes nursery rhymes and pictures. Relates Sendak's book to the poetry of William Blake. Suggests possible readings for the book and approaches to teaching it. (HB)

76 FR 18245 - West Tavaputs Plateau Road Restriction Order, Utah

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-01

... Tavaputs Plateau Road Restriction Order, Utah AGENCY: Bureau of Land Management, Interior. ACTION: Notice...) is restricting the use of certain roads in the Price Field Office, Utah, as follows: The public is prohibited from driving a motorized vehicle on Horse Bench, Jack Canyon, Jack Ridge, and Cedar Ridge Roads on...

Library of Habitat Models to Evaluate Benefits of Aquatic Restoration Projects on Fishes

DTIC Science & Technology

2008-08-01

Memphis ( MVM ) Districts. Particular assistance was provided by Gary Young, Dave Johnson, and Kent Parrish with MVK, and Edward Lambert and Mark Smith...with MVM . POINTS OF CONTACT: For additional information, contact Dr. K. Jack Killgore (601-634- 3397, Jack.Killgore@usace.army.mil) or the Program

A Bibliographic Tribute to Jack Michael

ERIC Educational Resources Information Center

Esch, Barbara E.; Esch, John W.

2016-01-01

"In the late 1950's, Jack Michael, a bright but irritating young psychology instructor, moved from the Universities of Kansas to Houston to Arizona State. Along the way he befriended two nontraditional students, protected them through their Ph.D. programs, and turned them loose on the world: Teodoro Ayllon…and Montrose Wolf…" (Risley,…

Heritability and intertrait correlations in breeding subpopulations of jack pine

Treesearch

Don E. Riemenschneider

1985-01-01

Twenty breeding populations of jack pine were established in 1979 and 1980 in Minnesota, Wisconsin, and Michigan. Four populations were index populations and were each established at 4 locations by research cooperators. Sixteen populations were applied breeding populations and were established at single locations by public and private cooperators. Combined analysis of...

Rapid Execution of an Analysis of Alternatives for NATO Special Operations HQ: A Smart Defence Approach

DTIC Science & Technology

2012-12-01

2012) ..............................................................................57 Figure 14. Crane Wheel MTD: Hydraulic Light 7-1/2 Ton With Cab...73 Figure 19. Jack Hydraulic Hand: 10 Ton Self-Contained...Aviation Ground Support Equipment Product Management Office, AGSE Product List, 2012) .............74 Figure 20. Jack Hydraulic Tripod: 3 Ton Capacity

Jack Nicholson: A Reel and Real-Life Contribution to Neurosciences.

PubMed

Tripathi, Manjul; Purkayastha, Moushumi; Rai, Ashutosh; Mukherjee, Kanchan K

2017-05-01

Though primarily considered entertainment, cinema is a mirror of society. The portrayal of neurosciences is common in cinema, but none could do it better than Jack Nicholson. We give a brief overview of his contribution to neurosciences by analyzing his acting skills. Copyright © 2016 Elsevier Inc. All rights reserved.

AmeriFlux CA-Ojp Saskatchewan - Western Boreal, Mature Jack Pine

DOE Data Explorer

Black, Andrew T. [University of British Columbia

2017-01-01

This is the AmeriFlux version of the carbon flux data for the site CA-Ojp Saskatchewan - Western Boreal, Mature Jack Pine. Site Description - 53.91634° N, 104.69203° W, elavation of 579.27 m, BOREAS 1994, BERMS climate measurements began Mar. 1997 and flux measurements Aug. 1999

Development of the Texas revenue estimator and needs determination system (T.R.E.N.D.S.) model.

DOT National Transportation Integrated Search

2010-05-01

The original purpose of Project 0-6395-TI was to assess the usefulness and viability of the Joint Analysis : Using Combined Knowledge (J.A.C.K.) model as a planning and forecasting tool. What originally was : named the J.A.C.K. model was substantiall...

Pheromone Production by an Invasive Bark Beetle Varies with Monoterpene Composition of its Naïve Host.

PubMed

Taft, Spencer; Najar, Ahmed; Erbilgin, Nadir

2015-06-01

The secondary chemistry of host plants can have cascading impacts on the establishment of new insect herbivore populations, their long-term population dynamics, and their invasion potential in novel habitats. Mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae) has recently expanded its range into forests of jack pine, Pinus banksiana Lamb., in western Canada. We investigated whether variations in jack pine monoterpenes affect beetle pheromone production, as the primary components of the beetle's aggregation pheromone, (-)-trans-verbenol and anti-aggregation pheromone (-)-verbenone, are biosynthesized from the host monoterpene α-pinene. Jack pine bolts were collected from five Canadian provinces east of the beetle's current range, live D. ponderosae were introduced into them, and their monoterpene compositions were characterized. Production of (-)-trans-verbenol and (-)-verbenone emitted by beetles was measured to determine whether pheromone production varies with monoterpene composition of jack pines. Depending on particular ratios of major monoterpenes in host phloem, jack pine could be classified into three monoterpenoid groups characterized by high amounts of (+)-α-pinene, 3-carene, or a more moderate blend of monoterpenes, and beetle pheromone production varied among these groups. Specifically, beetles reared in trees characterized by high (+)-α-pinene produced the most (-)-trans-verbenol and (-)-verbenone, while beetles in trees characterized by high 3-carene produced the least. Our results indicate that pheromone production by D. ponderosae will remain a significant aspect and important predictor of its survival and persistence in the boreal forest.

Safe, Advanced, Adaptable Isolation System Eliminates the Need for Critical Lifts

NASA Technical Reports Server (NTRS)

Ginn, Starr

2011-01-01

The Starr Soft Support isolation system incorporates an automatically reconfigurable aircraft jack into NASA's existing 1-Hertz isolators. This enables an aircraft to float in mid-air without the need for a critical lift during ground vibration testing (GVT), significantly reducing testing risk, time, and costs. Currently incorporating the most advanced technology available, the 60,000-poundcapacity (27-metric-ton) isolation system is used for weight and measurement tests, control-surface free-play tests, and structural mode interaction tests without the need for any major reconfiguration, often saving days of time and significantly reducing labor costs. The Starr Soft Support isolation system consists of an aircraft-jacking device with three jacking points, each of which has an individual motor and accommodates up to 20,000 pounds (9 metric tons) for a total 60,000-pound (27-metric-ton) capacity. The system can be transported to the aircraft by forklift and placed at its jacking points using a pallet jack. The motors power the electric actuators, raising the aircraft above the ground until the landing gear can retract. Inflatable isolators then deploy, enabling the aircraft to float in mid-air, simulating a 1-Hertz free-free boundary condition. Inflatable isolators have been in use at NASA for years, enabling aircraft to literally float unsupported for highly accurate GVT. These isolators must be placed underneath the aircraft for this to occur. Traditionally, this is achieved by a critical lift a high-risk procedure in which a crane and flexible cord system are used to lift the aircraft. In contrast, the Starr Soft Support isolation system eliminates the need for critical lift by integrating the inflatable isolators into an aircraft jacking system. The system maintains vertical and horizontal isolating capabilities. The aircraft can be rolled onto the system, jacked up, and then the isolators can be inflated and positioned without any personnel needing to work underneath the aircraft. Also, the system accommodates changes in aircraft configuration, automatically adapting to changes in mass, and it can adjust the height of the isolators in one basic setup. Dryden personnel used the Starr Soft Support system to successfully perform a GVT on an F-15 being structurally modified by Gulfstream, Dryden's Gulfstream III used for science research and the crew exploration module and adaptor cone assembly.

Looking at the vintage of 1949

NASA Astrophysics Data System (ADS)

Fifty years ago, as 1949 began, AGU dues had been raised from $5 to $7 per year. James Bernard Macelwane had just received the William Bowie Medal. Walter H. Bucher was about to become president, and H. U-.Sverdrup was vice-president.The Union's 4,500 members could choose among eight sections: Geodesy, Seismology, Meteorology, Terrestrial Magnetism and Electricity, Oceanography, Volcanology Hydrology, and Tectonophysics. Of the approximately 200 new members that joined AGU in 1949, 34 are celebrating 50 years of membership this year.The individuals listed below join the distinguished ranks of the other 50-year members. Their continuing commitment to AGU is deeply appreciated. Stephen E. Blewett, William E. Bonini, William M. Cameron, Robert A. Clark, John C. Cook, Joseph S. Cragwall, Jr., Richard C. Culler, Martin M. Fogel, Joseph B. Franzini, Thomas A. Gleeson, O. Milton Hackett, Arthur FHasbrook, James W. Hood, Shragga Irmay William W. Kellogg, Elizabeth R. King, Howard Klein, Finley B. Laverty Heinz H. Lettau, Kurt E. Lowe, Arthur R. Miller, Joseph W Mixsell, Carlo Morelli, Jack E. Oliver, B. H. Olsson, George L. Pickard, John L. Rosenfeld, Thorndike Saville, Jr., John W. Siegmund, James E. Slosson, John Summersett, Harold A. Thomas, Jr., Charles M. Weiss, and Glenn C. Werth.

Lively Jack-O'-Lantern Still Life

ERIC Educational Resources Information Center

Sanzaro, Christy

2010-01-01

Pumpkin carving is a favorite classroom activity. Around late October, the halls are filled with the sour smell of raw pumpkin innards, as parents, teachers and students are up to their elbows in yellowish strings and slime. These round, orange squash are transformed into jack-o'-lanterns that are placed around the school. The day after Halloween,…

14 CFR 25.519 - Jacking and tie-down provisions.

Code of Federal Regulations, 2014 CFR

2014-01-01

... structure must be designed for a vertical load of 1.33 times the vertical static reaction at each jacking point acting singly and in combination with a horizontal load of 0.33 times the vertical static reaction...: (i) The airplane structure must be designed for a vertical load of 1.33 times the vertical reaction...

14 CFR 25.519 - Jacking and tie-down provisions.

Code of Federal Regulations, 2012 CFR

2012-01-01

... structure must be designed for a vertical load of 1.33 times the vertical static reaction at each jacking point acting singly and in combination with a horizontal load of 0.33 times the vertical static reaction...: (i) The airplane structure must be designed for a vertical load of 1.33 times the vertical reaction...

14 CFR 25.519 - Jacking and tie-down provisions.

Code of Federal Regulations, 2013 CFR

2013-01-01

... structure must be designed for a vertical load of 1.33 times the vertical static reaction at each jacking point acting singly and in combination with a horizontal load of 0.33 times the vertical static reaction...: (i) The airplane structure must be designed for a vertical load of 1.33 times the vertical reaction...

Height and seasonal growth pattern of jack pine full-sib families

Treesearch

Don E. Riemenschneider

1981-01-01

Total tree height, seasonal shoot elongation, dates of growth initiation and cessation, and mean daily growth rate were measured and analyzed for a population of jack pine full-sib families derived from inter-provenance crosses. Parental provenance had no effect on these variables although this may have been due to small sample size. Progenies differed significantly...

Astronaut Jack Lousma participates in EVA to deploy twin pole solar shield

NASA Technical Reports Server (NTRS)

1973-01-01

Astronaut Jack R. Lousma, Skylab 3 pilot, participates in the August 6, 1973 extravehicular activity (EVA) during which he and Astronauts Owen K. Garriott, science pilot, deployed the twin pole solar shield to help shade the Orbital Workshop (OWS). Note the reflection of the Apollo Telescope Mount and the Earth in Lousma's helmet visor.

Developing Political Activism Awareness: An Interview with Jack Trammell

ERIC Educational Resources Information Center

Shetron, Tamara Harper

2013-01-01

This article presents an interview with Jack Trammell, whose contributions in the field of education have encompassed a variety of areas with one common denominator: equal access to higher education for all. He serves as the director of Disability Support Services at Randolph-Macon College in Ashland, Va, where he is also an assistant professor,…

Geographic variation of jack pine (Pinus banksiana Lamb.)

Treesearch

Jung Oh Hyun

1977-01-01

Ten traits were measured on 10-year-old jack pine grown at Cloquet, Minnesota, from seed collected from 90 provenances. The traits were examined by using analysis of variance and computing correlations for all combinations of 9 traits plus latitude , longitude, and elevation of the seed sources and cluster analyses using the D2 values from the...

Doubletalk: A Literary Pairing of "The Giver" and "We Are All in the Dumps with Jack and Guy."

ERIC Educational Resources Information Center

Lehman, Barbara A.; Crook, Patricia R.

1998-01-01

Pairs two books that might stimulate children's literary awareness--Lois Lowry's fantasy novel, "The Giver," and Maurice Sendak's picture book, "We Are All in the Dumps with Jack and Guy." Finds that the pairing and comparisons increased understandings about each work and how complementary they really are. (PA)

A test of 3 models of Kirtland's warbler habitat suitability

Treesearch

Mark D. Nelson; Richard R. Buech

1996-01-01

We tested 3 models of Kirtland's warbler (Dendroica kirtlandii) habitat suitability during a period when we believe there was a surplus of good quality breeding habitat. A jack pine canopy-cover model was superior to 2 jack pine stem-density models in predicting Kirtland's warbler habitat use and non-use. Estimated density of birds in high...

Mosaic Stunting in jack pine seedlings in a northern Michigan bareroot nursery

Treesearch

Lynette Potvin; R. Kasten Dumroese; Martin F. Jurgensen; Dana Richter

2010-01-01

Mosaic, or patchy, stunting of bareroot conifer seedlings is thought to be caused by deficiencies of mycorrhizal fungi following fumigation, resulting in reduced nutrient uptake, particularly phosphorus. Mosaic stunting of jack pine (Pinus banksiana) seedlings was observed in 2005 at the USDA Forest Service JW Toumey Nursery in Watersmeet, MI. We initiated a study to...

14 CFR 25.519 - Jacking and tie-down provisions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... structure must be designed for a vertical load of 1.33 times the vertical static reaction at each jacking point acting singly and in combination with a horizontal load of 0.33 times the vertical static reaction...: (i) The airplane structure must be designed for a vertical load of 1.33 times the vertical reaction...

14 CFR 25.519 - Jacking and tie-down provisions.

Code of Federal Regulations, 2011 CFR

2011-01-01

... structure must be designed for a vertical load of 1.33 times the vertical static reaction at each jacking point acting singly and in combination with a horizontal load of 0.33 times the vertical static reaction...: (i) The airplane structure must be designed for a vertical load of 1.33 times the vertical reaction...

Pinus contorta X banksiana hybrids tested in northern Rocky Mountains

Treesearch

G. E. Rehfeldt; J. E. Lotan

1970-01-01

Between 1950 and 1955 hybrid progenies of lodgepole pine (Pinus contorta Dougl.) X jack pine (Pinus banksiana Lamb.) were tested to determine whether adaptation and performance in Montana and Idaho justified improvement of lodgepole pine by hybridization. Average heights, diameters, and survival rates of hybrids, of jack pines native to the Lake States, and of...

Soil Properties Related to Coniferous Seedling Height Growth in Northern Wisconsin

Treesearch

John J. Rawinski; James A. Bowles; Nonan V. Noste

1980-01-01

Soil properties (organic matter content, pH, texture, and microclimate) were related to early height growth of jack pine (Pinus banksiana, Lamb.), red pine (Pinus resinosa, Ait.), white spruce (Picea glauca, (Moench) Voss), and hybrid larch (Larix leptolepis x Larizx decidua) planted in northern Wisconsin. Based on 2-year height growth, jack pine and hybrid larch...

36 CFR 7.83 - Ozark National Scenic Riverways.

Code of Federal Regulations, 2011 CFR

2011-07-01

...) The use of a motorized vessel is allowed as follows: (i) Above the Big Spring landing on the Current River and below Alley Spring on the Jacks Fork River with an outboard motor not to exceed 40 horsepower. (ii) Above Round Spring on the Current River and above Alley Spring on the Jacks Fork River with an...

36 CFR 7.83 - Ozark National Scenic Riverways.

Code of Federal Regulations, 2012 CFR

2012-07-01

...) The use of a motorized vessel is allowed as follows: (i) Above the Big Spring landing on the Current River and below Alley Spring on the Jacks Fork River with an outboard motor not to exceed 40 horsepower. (ii) Above Round Spring on the Current River and above Alley Spring on the Jacks Fork River with an...

36 CFR 7.83 - Ozark National Scenic Riverways.

Code of Federal Regulations, 2014 CFR

2014-07-01

...) The use of a motorized vessel is allowed as follows: (i) Above the Big Spring landing on the Current River and below Alley Spring on the Jacks Fork River with an outboard motor not to exceed 40 horsepower. (ii) Above Round Spring on the Current River and above Alley Spring on the Jacks Fork River with an...

36 CFR 7.83 - Ozark National Scenic Riverways.

Code of Federal Regulations, 2013 CFR

2013-07-01

...) The use of a motorized vessel is allowed as follows: (i) Above the Big Spring landing on the Current River and below Alley Spring on the Jacks Fork River with an outboard motor not to exceed 40 horsepower. (ii) Above Round Spring on the Current River and above Alley Spring on the Jacks Fork River with an...

Astronaut Jack Fischer at Rock Creek Park

NASA Image and Video Library

2017-11-04

NASA astronaut Jack Fischer speaks about his time aboard the International Space Station as part of Expeditions 51 and 52, Saturday, Nov. 4, 2017 at the Rock Creek Park Nature Center and Planetarium in Washington, DC. During his 136 day mission aboard the ISS, Fischer conducted two spacewalks and hundreds of scientific experiments. Photo Credit: (NASA/Joel Kowsky)

Jack Pine

Treesearch

William Dent Sterrett

1920-01-01

Jack pine is a very frugal tree in its climatic and soil requirements. The northern limit of its natural range is within 14 degrees of the Arctic Circle and the southern is marked by the southern shores of Lake Michigan. No other North American pine grows naturally so far north and all the others grow farther south. It develops commercial stands and reproduces itself...

Jack Colby Continues Stellar Legacy of APPA Fellows

ERIC Educational Resources Information Center

Thaler-Carter, Ruth E.

2011-01-01

This article profiles 2011 APPA Fellow Jack K. Colby, assistant vice chancellor for facilities operations at North Carolina State University. Colby has a history of nonstop service to his profession and to APPA that makes that ever-active, never-stop rabbit look like a piker. Like previous APPA Fellows, Colby could easily rest on his laurels of…

77 FR 64889 - Amendment of Class D and Class E Airspace; Hawthorne, CA

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-24

...-2012-1092; Airspace Docket No. 12-AWP-6] Amendment of Class D and Class E Airspace; Hawthorne, CA...: This action amends the airspace description for Class D and Class E airspace at Jack Northrop Field... the legal description of the existing Class D and E airspace at Jack Northrop Field/Hawthorne...

Wet and dry deposition in the AOSR collected by ion exchange resin samplers

Treesearch

Mark Fenn

2015-01-01

Atmospheric deposition of nitrogen (N), sulfur (S), and base cations was measured across the network of jack pine sites in the Athabasca Oil Sands Region using ion exchange resin (IER) collectors. Deposition was measured in forest clearings (bulk deposition) and under jack pine canopies (throughfall). As noted previously for other pollutants, throughfall deposition of...

The Jack Wills crowd: towards a sociology of an elite subculture.

PubMed

King, Anthony; Smith, Daniel

2018-03-01

British sociologists have long been interested in youth sub-cultures. However British sociologists have tended to focus on working class subcultures and avoided engagement with exclusive sub-cultures of elite social groups. This article seeks to attend to this gap by examining the subculture of a British elite: ex-public school students at select universities in the UK in the twenty-first century. This group consists of a relatively small group of young adults, aged between 18 and 23, who attended public schools, especially one of the nine Clarendon schools (Eton, Winchester, Westminster, St. Paul's, Merchant Taylor's, Shrewsbury, Rugby, Harrow and Charterhouse), and were students at a selective group of British universities, primarily Oxford and Cambridge, Durham, Bristol, Exeter, Bath, Manchester, St Andrews and Edinburgh. The article examines the way in which this group has reconfigured and re-constituted itself in the face of globalizing challenges. Specifically, it examines the way in which participation of ex-public school students in events run by and under the patronage of the high street retailing company, Jack Wills, has played a galvanising role for this group in the last decade. The Jack Wills crowd is an example of how some young adults form exclusive social networks and reproduce prevailing forms of privilege. The social networks built around the Jack Wills subculture is likely to provide them with advantages in the job market through a prodigious network of connections and patrons. The Jack Wills subculture potentially contributions to the socio-economic reproduction of the higher professional middle classes. © London School of Economics and Political Science 2017.

Practical breeding programs for jack pine in the Lake States

Treesearch

James P. King

1973-01-01

Jack pine (Pinus banksiana Lamb.) is the most common pine in the Lake States and is expected to play an increasingly important role in Lake States planting programs. This species is easy to plant successfully even on dry, sandy soils. Its rapid growth during the first 30 years makes it suitable for intensive-culture, short-rotation forestry. And it...

Comparing jack pine slash and forest floor moisture contents and National Fire Danger Rating System predictions.

Treesearch

Robert M. Loomis; William A. Main

1980-01-01

Relations between certain slash and forest floor moisture contents and the applicable estimated time lag fuel moistures of the National Fire Danger Rating System were investigated for 1-year-old jack pine fuel types in northeastern Minnesota and central Lower Michigan. Only approximate estimates of actual fuel moisture are possible fore the relations determined, thus...

Kirtland's Warbler (Setophaga kirtlankii)

Treesearch

John R. Probst; Deahn M. Donner

2011-01-01

Spring travelers from around the world are attracted to the young jack pine forests of Michigan for a chance to hear the loud distinct song of the endangered Kirtland's Warbler. This blue-gray-backed warbler with a yellow underside can be heard singing from its perch in the tops of standing snags or jack pine trees, or seen hopping from tree to tree or to the...

Effect of average growing season temperature on seedling germination, survival and growth in jack pine (Pinus banksiana Lamb.)

Treesearch

A. David; E. Humenberger

2017-01-01

Because jack pine (Pinus banksiana Lamb.) is serotinous, it retains multiple years of cones until environmental conditions are favorable for releasing seed. These cones, which contain seed cohorts that developed under a variety of growing seasons, can be accurately aged using bud scale scars on twigs and branches. By calculating the average daily...

Variability and persistence of post-fire biological legacies in jack pine-dominated ecosystems of northern Lower Michigan

Treesearch

Daniel Kashian; Gregory Corace; Lindsey Shartell; Deahn M. Donner; Philip Huber

2011-01-01

Stand-replacing wildfires have historically shaped the forest structure of dry, sandy jack pine-dominated ecosystems at stand and landscape scales in northern Lower Michigan. Unique fire behavior during large wildfire events often preserves long strips of unburned trees arranged perpendicular to the direction of fire spread. These biological legacies create...

Growth of hybrid poplars, white spruce, and jack pine under various artificial lights.

Treesearch

Pamela S. Roberts; J. Zavitkovski

1981-01-01

Describes the energy consumption and biological effects of fluorescent, incandescent, and high pressure sodium lighting on the growth of poplars, white spruce, and jack pine in a greenhouse. At similar light levels the biological effects of all three light sources were similar. The incandescent lamps consumed several times more energy than the other two light...

From Word to World: Reflections on the Ezra Jack Keats Award.

ERIC Educational Resources Information Center

Herrera, Juan Felipe

2000-01-01

Discusses the author's Ezra Jack Keats Award for "Calling the Doves/El Canto de las Palomas" (1995), a bilingual picture book based on his childhood in the farm working camps of Central California. Concludes that writers must stay true to the deep sources of multicultural experience, for positive change, and for the magical pictures and poems. (SG)

Expressing the sense of Congress that John Arthur "Jack" Johnson should receive a posthumous pardon for the racially motivated conviction in 1913 that diminished the athletic, cultural, and historic significance of Jack Johnson and unduly tarnished his reputation.

THOMAS, 113th Congress

Rep. King, Peter T. [R-NY-2

2013-03-05

House - 04/08/2013 Referred to the Subcommittee on Crime, Terrorism, Homeland Security, And Investigations. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

Variability and persistence of post-fire biological legacies in jack pine-dominated ecosystems of northern Lower Michigan

Treesearch

Daniel M. Kashian; R. Gregory Corace; Lindsey M. Shartell; Deahn M. Donner; Philip W. Huber

2012-01-01

On the dry, flat, jack pine (Pinus banksiana Lamb.)-dominated ecosystems of the northern Lake States and eastern Canada, wildfire behavior often produces narrow, remnant strips of unburned trees that provide heterogeneity on a landscape historically shaped by stand-replacing wildfires. We used landscape metrics to analyze a chronosequence of aerial...

Seed source variation in tracheid length and specific gravity of five-year-old jack pine seedlings

Treesearch

James P. King

1968-01-01

Jack pine (Pinus banksiana Lamb.) is widely used in Lake States reforestation because of its ability to make rapid early growth on relatively infertile sites. It is a major pulpwood producing species. Since the quality and yield of pulp are so strongly influenced by tracheid length and specific gravity, information on genetic variation in these...

Forest floor fuels in red and jack pine stands

Treesearch

James K. Brown

1966-01-01

An investigation to determine the quantity and density of forest floor fuels in red pine (Pinus resinosa Ait.) and jack pine (Pinus banksiana Lamb.) stands was conducted on National Forests in Michigan and Minnesota. The study was designed to answer three questions: How much fuel per acre exits in individual layers of the forest floor? How reliably can weight of...

75 FR 27580 - Notice of Lodging of Consent Decree Under the Clean Air Act

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-17

... given that on May 10, 2010, a proposed Consent Decree (``Decree'') in United States v. The Pep Boys... (``CAA'') against The Pep Boys--Manny, Moe & Jack, and Baja, Inc., for violations of the mobile source.... The Pep Boys--Manny, Moe & Jack, and Baja, Inc., Civil Action No. 10-cv-00745, (D.D.C.), D.J. Ref. 90...

Jack Pine and Aspen Forest Floors in Northeastern Minnesota

Treesearch

Robert M. Loomis

1977-01-01

Characteristics of upland forest floors under mature jack pine and aspen in northeastern Minnesota were investigated. These fuel measurements were needed as inputs for fire behavior prediction models -- useful for fire management decisions. The forest floor weight averaged 33,955 kg/ha and depth averaged 7.1 cm. Bulk density averaged 17 kg/m3 for the L (litter)...

Hydraulically-operated pump jack with chain drive

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ratell Jr., R. E.

1985-02-05

My invention relates to pumping apparatus, particularly to a hydraulically-operated pump jack for oil, brine water and the like. The apparatus is fabricated from steel plate to make a strong, but light-weight tower which may be easily transported from one site to another by a small boom truck or gin pole truck. In contrast to pump jacks of the walking beam type which are massive in size, my improved pump jack is compact and is seated on and secured directly to the head of an oil well casing. A vertically-arranged hydraulic cylinder has its piston rod connected to a crossmore » head on which a pair of sprockets are journalled. Chains pass around respective sprockets, one reach of each chain extending upwardly and is anchored to a stationary part of the tower. The other reach of each chain extends upwardly and over and around an upper sprocket journalled on a shaft carried by the upper end of the tower, each chain then extending downwardly to a yoke to which the polish rod is connected. This arrangement will result in a 2 to 1 ratio between the movement of the polish rod and the stroke of the hydraulic cylinder.« less

Variation of Time Domain Failure Probabilities of Jack-up with Wave Return Periods

NASA Astrophysics Data System (ADS)

Idris, Ahmad; Harahap, Indra S. H.; Ali, Montassir Osman Ahmed

2018-04-01

This study evaluated failure probabilities of jack up units on the framework of time dependent reliability analysis using uncertainty from different sea states representing different return period of the design wave. Surface elevation for each sea state was represented by Karhunen-Loeve expansion method using the eigenfunctions of prolate spheroidal wave functions in order to obtain the wave load. The stochastic wave load was propagated on a simplified jack up model developed in commercial software to obtain the structural response due to the wave loading. Analysis of the stochastic response to determine the failure probability in excessive deck displacement in the framework of time dependent reliability analysis was performed by developing Matlab codes in a personal computer. Results from the study indicated that the failure probability increases with increase in the severity of the sea state representing a longer return period. Although the results obtained are in agreement with the results of a study of similar jack up model using time independent method at higher values of maximum allowable deck displacement, it is in contrast at lower values of the criteria where the study reported that failure probability decreases with increase in the severity of the sea state.

Chemical properties of litter inputs and organic matter along the Canadian Boreal Forest Transect Case Study

NASA Astrophysics Data System (ADS)

Preston, C. M.; Bhatti, J. S.; Norris, C. E.; Quideau, S. A.; Arevalo, C.

2012-04-01

To improve prediction of climate change impacts on the carbon balance of boreal forests, we are investigating C stocks, fluxes and organic matter quality of jack pine (Pinus banksiana) and black spruce (Picea mariana) stands in northern Saskatchewan and Manitoba along the Boreal Forest Transect Case Study (BFTCS). Jack pine stands occupy well-drained sandy soils with thin forest floor, whereas poorly-drained black spruce stands have a thick moss-dominated forest floor. Carbon storage for jack pine and black spruce stands respectively was 3.0-5.5 kg m-2 and 5.2-8.2 kg m-2 in vegetation, and 0.20-0.85 kg m-2 and 0.12-0.40 kg m-2 in coarse woody debris. Forest floor C stock was much higher for black spruce (6.0-12.7 kg m-2) than for jack pine (0.6-0.82 kg m-2). Mineral soil C to 50 cm was also significantly higher for black spruce (3.3-12.5 kg m-2) than for jack pine sites (2.2-3.0 kg m-2). Black spruce forest floor properties indicate hindered decomposition and N cycling, with high C/N ratios, strongly stratified and depleted ^13C and ^15N values, high tannins and phenolics, and 13C nuclear magnetic resonance (NMR) spectra typical of poorly decomposed plant material, especially roots and mosses. The thinner jack pine forest floor appears to be dominated by lichen, with charcoal in some samples. These contrasts are unlikely due to the small differences in aboveground litter inputs (110 vs 121 g m-2) for jack pine and black spruce respectively, 2000-2010 means) or litter quality. Development of colder, wetter and thicker black spruce forest floor is more likely associated with soil texture and drainage, further exacerbated by increasing sphagnum coverage and forest floor depth. This suggests that small environmental changes could trigger large C losses through enhanced forest floor decomposition. An investigation of mineral soil C stabilization in four jack pine sites showed that silt plus clay accounted for 15-43 % of 0-1 m C (1.5-2.8 kg m-2); silt held 0.9-3.3% of horizon mass and 13-31% of total C. Carbon-13 NMR of HF-treated silt fractions showed that alkyl and O-alkyl C dominated the A and B horizons, but C-horizon samples were higher in aromatic C, possibly of fire origin. HCl hydrolysis was used to to isolate older C, but most 14C dates were modern, with five samples from deeper horizons ranging from 141-5184 ybp. HCl residues were mainly alkyl and aromatic C. Especially for black spruce stands, soil C appears to be dominated by inputs from roots and moss, and stabilized mainly by environmental factors; soil C stored as thick forest floor is also vulnerable to loss by fire. Forest floor and mineral soil show evidence of pyrogenic C, but quantitative data are lacking to assess its role in long-term C sequestration. Considering the sensitivity of this region to climate change, further research should focus on understanding the processes controlling climate, vegetation and soil interactions throughout the lifecycle of jack pine and black spruce forests.

Jack Michael's Appointments at the University of Houston and Arizona State University: Reflections from a Former Student

ERIC Educational Resources Information Center

Mabry, John H.

2016-01-01

Jack Michael was an early enthusiast for what is now called applied behavior analysis. His many seminal contributions were through early publications in applied behavior analysis and the work of the students he trained (e.g., T. Ayllon, M. M. Wolf). His close mentorship of students earned him acclaim as a teacher along with his many theoretical…

Child's Letter to President John F. Kennedy about Physical Fitness

ERIC Educational Resources Information Center

McNatt, Missy

2009-01-01

On March 3, 1963, nine-year-old Jack Chase of Torrance, California, wrote a letter to President John F. Kennedy. In his single-page note, featured in this article, Jack described his plans for staying physically fit. He said he would walk to school, the store, and the library "because I know a strong boy makes a strong man and a strong man makes a…

Derivation of jack movement influence coefficients as a basis for selecting wall contours giving reduced levels of interference in flexible walled test sections

NASA Technical Reports Server (NTRS)

Goodyer, M. J.

1985-01-01

This report covers work done in a transonic wind tunnel towards providing data on the influence of the movement of wall-control jacks on the Mach number perturbations along the test section. The data is derived using an existing streamline-curvature program, and in application is reduced to matrices of influence coefficients.

The Future of the American Faculty: An Interview with Martin J. Finkelstein and Jack H. Schuster

ERIC Educational Resources Information Center

Rice, R. Eugene

2004-01-01

Martin J. Finkelstein and Jack H. Schuster have teamed up to continue tracing the changes taking place in faculty work with their Project on the American Faculty. They have published The New Academic Generation: A Profession in Transformation (1998), co-authored with Robert Seal, and are preparing a new manuscript to appear in 2004 with a working…

Astronaut Jack Lousma looks at map of Earth in ward room of Skylab cluster

NASA Image and Video Library

1973-08-01

S73-34193 (1 Aug. 1973) --- Astronaut Jack R. Lousma, Skylab 3 pilot, looks at a map of Earth at the food table in the ward room of the Orbital Workshop (OWS). In this photographic reproduction taken from a television transmission made by a color TV camera aboard the Skylab space station cluster in Earth orbit. Photo credit: NASA

Development of a well-behaved site index equation: jack pine in north central Ontario

Treesearch

J. C. G. Goelz; T. E. Burke

1992-01-01

A base-age invariant site index equation for jack pine based on the Chapman-Richards function was produced that satisfied nine criteria of preferred behavior for site index equations. A difference form of the Chapman-Richards equation produced the best behavior; height equaled site index at base age, and the shape of the curves reflected the data. The data structure...

Systems Fragility: The Sociology of Chaos

DTIC Science & Technology

2015-03-01

Science (New York, N.Y.) 302, no. 5652 (2004): 1912, doi:10.1126/science.1090847. 70 Barry Wellman, and Scot Wortley, “Different Strokes from...Michael Dombeck, Jack Williams, and Christopher Wood , “Wildfire Policy and Public Lands: Integrating Scientific Understanding with Social Concerns...bitstream/10092/2809/ 1/12593870_ResOrgs_IFED_dec04_EDSM.pdf Dombeck, Michael, Jack Williams, and Christopher Wood . “Wildfire Policy and Public

65th birthday Jack Steinberger

ScienceCinema

None

2017-12-09

Laudatio pour Jack Steinberger né le 25 mai 1921, à l'occasion de son 65me anniversaire et sa retraite officielle, pour sa précieuse collaboration au Cern. Néanmoins son principal activité continuera comme avant dans sa recherche au Cern. Plusieurs orateurs prennent la parole (p.ex. E.Picasso) pour le féliciter et lui rendre hommage

Magic Words, Magic Brush: The Art of William Butler and Jack Yeats. ArtsEdge Curricula, Lessons and Activities.

ERIC Educational Resources Information Center

Karsten, Jayne

This curriculum unit, designed for grades 7-12, integrates various artistic disciplines with geography, history, social studies, media, and technology. This unit on William Butler Yeats, the writer, and Jack Yeats, the painter, seeks to immerse students in a study of the brothers as voices of Ireland and as two of the most renowned artists of the…

Survival and growth of two intensively cultured jack pine provenances raised in Tubepak and Jiffy 7 containers

Treesearch

J. Zavitkovski; Howard M. Phipps

1983-01-01

Container type, provenance, and spacing affect survival, height and d.b.h, growth, and biomass production of intensively cultured jack pine. The Lower Michigan provenance and Tubepak grown plants performed better than the local (Wisconsin) provenance and plants raised in Jiffy 7 pellets. At age 5, biomass of Tubepak plantings was more than 100% higher than that of...

Is the lateral jack-knife position responsible for cases of transient neurapraxia?

PubMed

Molinares, Diana Margarita; Davis, Timothy T; Fung, Daniel A; Liu, John Chung-Liang; Clark, Stephen; Daily, David; Mok, James M

2016-01-01

The lateral jack-knife position is often used during transpsoas surgery to improve access to the spine. Postoperative neurological signs and symptoms are very common after such procedures, and the mechanism is not adequately understood. The objective of this study is to assess if the lateral jack-knife position alone can cause neurapraxia. This study compares neurological status at baseline and after positioning in the 25° right lateral jack-knife (RLJK) and the right lateral decubitus (RLD) position. Fifty healthy volunteers, ages 21 to 35, were randomly assigned to one of 2 groups: Group A (RLD) and Group B (RLJK). Motor and sensory testing was performed prior to positioning. Subjects were placed in the RLD or RLJK position, according to group assignment, for 60 minutes. Motor testing was performed immediately after this 60-minute period and again 60 minutes thereafter. Sensory testing was performed immediately after the 60-minute period and every 15 minutes thereafter, for a total of 5 times. Motor testing was performed by a physical therapist who was blinded to group assignment. A follow-up call was made 7 days after the positioning sessions. Motor deficits were observed in the nondependent lower limb in 100% of the subjects in Group B, and no motor deficits were seen in Group A. Statistically significant differences (p < 0.05) were found between the 2 groups with respect to the performance on the 10-repetition maximum test immediately immediately and 60 minutes after positioning. Subjects in Group B had a 10%-70% (average 34.8%) decrease in knee extension strength and 20%-80% (average 43%) decrease in hip flexion strength in the nondependent limb. Sensory abnormalities were observed in the nondependent lower limb in 98% of the subjects in Group B. Thirty-six percent of the Group B subjects still exhibited sensory deficits after the 60-minute recovery period. No symptoms were reported by any subject during the follow-up calls 7 days after positioning. Twenty-five degrees of right lateral jack-knife positioning for 60 minutes results in neurapraxia of the nondependent lower extremity. Our results support the hypothesis that jack-knife positioning alone can cause postoperative neurological symptoms.

Do Jack Hills Detrital Zircons Contain Records of the Early Geodynamo?

NASA Astrophysics Data System (ADS)

Weiss, B. P.; Maloof, A. C.; Tailby, N. D.; Ramezani, J.; Fu, R. R.; Glenn, D. R.; Kehayias, P.; Walsworth, R. L.; Hanus, V.; Trail, D.; Watson, E. B.; Harrison, T. M.; Bowring, S. A.; Kirschvink, J. L.; Swanson-Hysell, N.; Coe, R. S.; Einsle, J. F.; Harrison, R. J.

2015-12-01

It is unknown when Earth's dynamo magnetic field originated. With crystallization ages ranging from 3.0-4.38 Ga, detrital zircon crystals found in the Jack Hills of Western Australia might preserve a record of the missing first billion years of Earth's magnetic field history. Recently, Tarduno et al. (2015) argued that magnetization in Jack Hills zircons provides evidence for a substantial geomagnetic field dating back to their U/Pb formation ages (3.3 and 4.2 Ga). However, the identification of such ancient field records requires establishing that the zircons have avoided remagnetization since their formation. At a minimum, it should be demonstrated that they have not been remagnetized since being deposited at ~3.0 Ga. To establish the timing and intensity of the metamorphic and alteration events experienced by the zircon, we conducted 12 paleomagnetic field tests in combination with U-Pb geochronology on their host rocks (see Weiss et al. 2015, EPSL). Our data show that the Hadean zircon-bearing rocks and surrounding region have been pervasively remagnetized, with the final major overprinting likely from emplacement of the Warakurna large igneous province at 1.1 Ga (see Figure). Even if some Jack Hills zircons do record a pre-depositional magnetization, they still could have been remagnetized sometime during the 1.4 Gy between their crystallization and their deposition. First, the temperatures capable of remagnetizing magnetite inclusions are well below those that could reset a U-Pb date or result in significant discordance. Therefore, thermal events capable of completely remagnetizing Jack Hills zircons could be undetected by the techniques reported by Tarduno at al. (2015). Second, the zircons' magnetization might be dominated by secondary ferromagnetic inclusions or contamination. To address the latter possibility, we are conducting electron microscopy, x-ray tomography, and magnetic field mapping on the zircons. Our initial quantum diamond magnetometry high-resolution (<20 um) imaging has found that the magnetization of many zircons resides in grain exteriors, suggesting a dominantly secondary origin. We conclude that there is currently no robust evidence for pre-depositional (>3.0 Ga) magnetization in the Jack Hills detrital zircons. We are continuing to search for such magnetic records.

Pervasive remagnetization of detrital zircon host rocks in the Jack Hills, Western Australia and implications for records of the early geodynamo

NASA Astrophysics Data System (ADS)

Weiss, Benjamin P.; Maloof, Adam C.; Tailby, Nicholas; Ramezani, Jahandar; Fu, Roger R.; Hanus, Veronica; Trail, Dustin; Bruce Watson, E.; Harrison, T. Mark; Bowring, Samuel A.; Kirschvink, Joseph L.; Swanson-Hysell, Nicholas L.; Coe, Robert S.

2015-11-01

It currently is unknown when Earth's dynamo magnetic field originated. Paleomagnetic studies indicate that a field with an intensity similar to that of the present day existed 3.5 billion years ago (Ga). Detrital zircon crystals found in the Jack Hills of Western Australia are some of the very few samples known to substantially predate this time. With crystallization ages ranging from 3.0-4.38 Ga, these zircons might preserve a record of the missing first billion years of Earth's magnetic field history. However, a key unknown is the age and origin of magnetization in the Jack Hills zircons. The identification of >3.9 Ga (i.e., Hadean) field records requires first establishing that the zircons have avoided remagnetization since being deposited in quartz-rich conglomerates at 2.65-3.05 Ga. To address this issue, we have conducted paleomagnetic conglomerate, baked contact, and fold tests in combination with U-Pb geochronology to establish the timing of the metamorphic and alteration events and the peak temperatures experienced by the zircon host rocks. These tests include the first conglomerate test directly on the Hadean-zircon bearing conglomerate at Erawandoo Hill. Although we observed little evidence for remagnetization by recent lightning strikes, we found that the Hadean zircon-bearing rocks and surrounding region have been pervasively remagnetized, with the final major overprinting likely due to thermal and/or aqueous effects from the emplacement of the Warakurna large igneous province at ∼1070 million years ago (Ma). Although localized regions of the Jack Hills might have escaped complete remagnetization, there currently is no robust evidence for pre-depositional (>3.0 Ga) magnetization in the Jack Hills detrital zircons.

Climate-diameter growth relationships of black spruce and jack pine trees in boreal Ontario, Canada.

PubMed

Subedi, Nirmal; Sharma, Mahadev

2013-02-01

To predict the long-term effects of climate change - global warming and changes in precipitation - on the diameter (radial) growth of jack pine (Pinus banksiana Lamb.) and black spruce (Picea mariana [Mill.] B.S.P.) trees in boreal Ontario, we modified an existing diameter growth model to include climate variables. Diameter chronologies of 927 jack pine and 1173 black spruce trees, growing in the area from 47°N to 50°N and 80°W to 92°W, were used to develop diameter growth models in a nonlinear mixed-effects approach. Our results showed that the variables long-term average of mean growing season temperature, precipitation during wettest quarter, and total precipitation during growing season were significant (alpha = 0.05) in explaining variation in diameter growth of the sample trees. Model results indicated that higher temperatures during the growing season would increase the diameter growth of jack pine trees, but decrease that of black spruce trees. More precipitation during the wettest quarter would favor the diameter growth of both species. On the other hand, a wetter growing season, which may decrease radiation inputs, increase nutrient leaching, and reduce the decomposition rate, would reduce the diameter growth of both species. Moreover, our results indicated that future (2041-2070) diameter growth rate may differ from current (1971-2000) growth rates for both species, with conditions being more favorable for jack pine than black spruce trees. Expected future changes in the growth rate of boreal trees need to be considered in forest management decisions. We recommend that knowledge of climate-growth relationships, as represented by models, be combined with learning from adaptive management to reduce the risks and uncertainties associated with forest management decisions. © 2012 Blackwell Publishing Ltd.

Sperm competition, but not major histocompatibility divergence, drives differential fertilization success between alternative reproductive tactics in Chinook salmon.

PubMed

Lehnert, S J; Helou, L; Pitcher, T E; Heath, J W; Heath, D D

2018-01-01

Post-copulatory sexual selection processes, including sperm competition and cryptic female choice (CFC), can operate based on major histocompatibility (MH) genes. We investigated sperm competition between male alternative reproductive tactics [jack (sneaker) and hooknose (guard)] of Chinook salmon (Oncorhynchus tshawytscha). Using a full factorial design, we examined in vitro competitive fertilization success of paired jack and hooknose males at three time points after sperm activation (0, 15 and 60 s) to test for male competition, CFC and time effects on male fertilization success. We also examined egg-mediated CFC at two MH genes by examining both the relationship between competitive fertilization success and MH divergence as well as inheritance patterns of MH alleles in resulting offspring. We found that jacks sired more offspring than hooknose males at 0 s post-activation; however, jack fertilization success declined over time post-activation, suggesting a trade-off between sperm speed and longevity. Enhanced fertilization success of jacks (presumably via higher sperm quality) may serve to increase sneaker tactic competitiveness relative to dominant hooknose males. We also found evidence of egg-mediated CFC (i.e. female × male interaction) influencing competitive fertilization success; however, CFC was not acting on the MH genes as we found no relationship between fertilization success and MH II β 1 or MH I α 1 divergence and we found no deviations from Mendelian inheritance of MH alleles in the offspring. Our study provides insight into evolutionary mechanisms influencing variation in male mating success within alternative reproductive tactics, thus underscoring different strategies that males can adopt to attain success. © 2017 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2017 European Society For Evolutionary Biology.

JackIn Head: Immersive Visual Telepresence System with Omnidirectional Wearable Camera.

PubMed

Kasahara, Shunichi; Nagai, Shohei; Rekimoto, Jun

2017-03-01

Sharing one's own immersive experience over the Internet is one of the ultimate goals of telepresence technology. In this paper, we present JackIn Head, a visual telepresence system featuring an omnidirectional wearable camera with image motion stabilization. Spherical omnidirectional video footage taken around the head of a local user is stabilized and then broadcast to others, allowing remote users to explore the immersive visual environment independently of the local user's head direction. We describe the system design of JackIn Head and report the evaluation results of real-time image stabilization and alleviation of cybersickness. Then, through an exploratory observation study, we investigate how individuals can remotely interact, communicate with, and assist each other with our system. We report our observation and analysis of inter-personal communication, demonstrating the effectiveness of our system in augmenting remote collaboration.

Astronaut Jack Fischer at Air and Space Museum

NASA Image and Video Library

2017-11-03

NASA astronaut Jack Fischer conducts an experiment during a Stem in 30 segment, Friday, Nov. 3, 2017 at Smithsonian's National Air and Space Museum in Washington. During Expedition 52, Fischer completed hundreds of scientific experiments and two spacewalks, and concluded his 136-day mission onboard the International Space Station, when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in September 2017. Photo Credit: (NASA/Aubrey Gemignani)

Multiple Autonomous Vehicles for Minefield Reconnaissance and Mapping

DTIC Science & Technology

1997-12-01

NPS-ME-97-008 NAVAL POSTGRADUATE SCHOOL Monterey, California ItC A D- 19980421 131 =C QUALTY Ui Ji.CTEJ) THESIS MULTIPLE AUTONOMOUS VEHICLES FOR...MULTIPLE AUTONOMOUS VEHICLES FOR MINEFIELD 5. FUNDING NUMBERS RECONNAISSANCE AND MAPPING N0001497WX30039 6. AUTHOR(S) Jack A. Starr 7. PERFORMING... AUTONOMOUS VEHICLES FOR MINEFIELD RECONNAISSANCE AND MAPPING Jack A. Starr Lieutenant, United States Navy B.S., Oregon State University, 1991 Submitted in

A Response to Jack R. Fraenkel. An Exchange of Views between Edwin Fenton and Jack R. Fraenkel, the Cognitive-Developmental Approach to Moral Education

ERIC Educational Resources Information Center

Fenton, Edwin

1977-01-01

Responses to Fraenkel's 15 criticisms of the author's article about Kohlberg's cognitive-developmental approach to moral education in the April 1976 issue of "Social Education." Three circumstances are stated as reasons for the differences between the two men: (1) staying up-to-date with research and publications, (2) time consumed in refuting…

Astronaut Jack Fischer at Air and Space Museum

NASA Image and Video Library

2017-11-03

NASA astronaut Jack Fischer speaks about his time onboard the International Space Station (ISS) during Expeditions 51/52, Friday, Nov. 3, 2017 at Smithsonian's National Air and Space Museum in Washington. During Expedition 52, Fischer completed hundreds of scientific experiments and two spacewalks, and concluded his 136-day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in September 2017. Photo Credit: (NASA/Aubrey Gemignani)

Rereading "The Jack-Roller:" Hidden Histories in Sociology and Social Work

ERIC Educational Resources Information Center

Shaw, Ian

2009-01-01

I revisit one of the iconic Chicago School studies, Clifford Shaw's "The Jack-Roller". A naive reading of Shaw's book leaves the reader with a sense of having been inducted into a melange of what we now know as "sociology" and "social work," but which to Shaw seems a coherent stance. I suggest that this is close to the heart of how things were,…

Spiked Models of Large Dimensional Random Matrices Applied to Wireless Communications and Array Signal Processing

DTIC Science & Technology

2013-12-14

population covariance matrix with application to array signal processing; and 5) a sample covariance matrix for which a CLT is studied on linear...Applications , (01 2012): 1150004. doi: Walid Hachem, Malika Kharouf, Jamal Najim, Jack W. Silverstein. A CLT FOR INFORMATION- THEORETIC STATISTICS...for Multi-source Power Estimation, (04 2010) Malika Kharouf, Jamal Najim, Jack W. Silverstein, Walid Hachem. A CLT FOR INFORMATION- THEORETIC

BOREAS TF-10 NSA-YJP Tower Flux, Meteorological, and Porometry Data

NASA Technical Reports Server (NTRS)

McCaughey, J. Harry; Liblik, Laura; Hall, Forrest G. (Editor); Huemmrich, K. (Editor)

2000-01-01

The BOREAS TF-10 team collected tower flux and meteorological data at two sites, a fen and a young jack pine forest, near Thompson, Manitoba, Canada, as part of BOREAS. A preliminary data set was assembled in August 1993 while field testing the instrument packages, and at both sites data were collected from 15-Aug to 31-Aug. The main experimental period was in 1994, when continuous data were collected from the young jack pine site from 23-May to 20-Sep. Upon examination of the 1994 data set, it became clear that the behavior of the heat, water, and carbon dioxide fluxes throughout the whole growing season was an important scientific question, and that the 1994 data record was not sufficiently long to capture the character of the seasonal behavior of the fluxes. Thus, the young jack pine site was operated from 08-May to 07-Nov in 1996 in order to collect data from spring melt to autumn freeze-up. All variables are presented as 30-minute averages. Supporting data were also collected to describe the surface#s state and to provide the information, in association with the flux data, to build SVAT models. For the young jack pine site, these supporting data included stomatal conductance measurements. The data are stored in tabular ASCII files.

Associations of stream geomorphic conditions and prevalence of alternative reproductive tactics among sockeye salmon populations.

PubMed

DeFilippo, L B; Schindler, D E; Carter, J L; Walsworth, T E; Cline, T J; Larson, W A; Buehrens, T

2018-02-01

In many species, males may exhibit alternative life histories to circumvent the costs of intrasexual competition and female courtship. While the evolution and underlying genetic and physiological mechanisms behind alternative reproductive tactics are well studied, there has been less consideration of the ecological factors that regulate their prevalence. Here, we examine six decades of age composition records from thirty-six populations of sockeye salmon (Oncorhynchus nerka) to quantify associations between spawning habitat characteristics and the prevalence of precocious sneakers known as 'jacks'. Jack prevalence was independent of neutral genetic structure among stream populations, but varied among habitat types and as a function of continuous geomorphic characteristics. Jacks were more common in streams relative to beaches and rivers, and their prevalence was negatively associated with stream width, depth, elevation, slope and area, but positively related to bank cover. Behavioural observations showed that jacks made greater use of banks, wood and shallows than guard males, indicating that their reproductive success depends on the availability of such refuges. Our results emphasize the role of the physical habitat in shaping reproductive tactic frequencies among populations, likely through local adaptation in response to variable fitness expectations under different geomorphic conditions. © 2017 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2017 European Society For Evolutionary Biology.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chevallier, J.; Turner, L.

This article describes the design and operation of Trident IX a successfully applied jack up system. A summary of Trident IX's two years of operation in the Arabian Gulf and offshore West Africa is presented. The system is compared to conventional jacking systems in terms of design, operation, costs and safety. Dynamic forces at 400 ft. water depths are summarized, and design of the legs to withstand these dynamic forces and accomodate the new system are explained. Features are listed.

On the Eicosanoid Trail with John Vane and Jack McGiff: 1974-1976. A personal reminiscence.

PubMed

Flower, R J

2015-07-01

In this brief personal reminiscence I comment upon the friendship and mutual understanding that arose between two great scientists and co-travellers, John Vane and Jack McGiff. I relate the events that led up to their meeting and focus on the brief period of time when they worked together on eicosanoid pharmacology in the UK. Copyright © 2015 Elsevier Inc. All rights reserved.

'Weightless' acrylic painting by Jack Kroehnke

NASA Technical Reports Server (NTRS)

1987-01-01

'Weightless' acrylic painting by Jack Kroehnke depicts STS-26 Discovery, Orbiter Vehicle (OV) 103, Mission Specialist (MS) David C. Hilmers participating in extravehicular activity (EVA) simulation in JSC Weightless Environment Training Facility (WETF) Bldg 29. In the payload bay (PLB) mockup, Hilmers, wearing extravehicular mobility unit (EMU), holds onto the mission-peculiar equipment support structure in foreground while SCUBA-equipped diver monitors activity overhead and camera operator records EVA procedures. Copyrighted art work for use by NASA.

Regional discrimination studies: Phase III. Scientific report No. 3

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bonner, J.; Herrin, E.; Sorrells, G.G.

1997-03-01

This report consists of three parts. Part 1, `Construction of Regional Ground Truth Data Bases Using Seismic And Infrasound Data` is by Gordon Sorrells, Eugene Herrin, and Jessie Bonner with contributions from Jack Swanson, Sarah Deering and Angela Maddox. Part 2, `Seismic And Infrasound Data Observations At TXAR` is by Jessie Bonner, Sarah Deering, Tao Liu, Jack Swanson and Ileana Tibuleac. Part 3, consists of the Acknowledgments called for by the contract.

Jack'd, a Mobile Social Networking Application: A Site of Exclusion Within a Site of Inclusion.

PubMed

Bartone, Michael D

2018-01-01

User-generated smartphone applications have created a new level of virtual connectivity for gay males, one in which users can create profiles and meet other users as nearby or as far away as possible. For those within close proximity, the other users can be considered their "virtual neighbors." Although the applications are theoretically designed to be places of inclusion and not exclusion, where any gay male with economic means can download an application, many profiles have been created that exclude other users. Through an examination of profiles on one such application, Jack'd, exclusion is found in the way users celebrate and reinforce ideas of traditional masculinity and denigrate and reinforce stereotypic ideas of femininity embodied by some gay men. Jack'd, and other user-generated smartphone applications, can be read as virtual neighborhoods where one is excluded based on their gender performance.

Effects of soil temperature and elevated atmospheric CO2 concentration on gas exchange, in vivo carboxylation and chlorophyll fluorescence in jack pine and white birch seedlings.

PubMed

Zhang, Shouren; Dang, Qing-Lai

2005-05-01

One-year-old jack pine (Pinus banksiana Lamb.) and current-year white birch (Betula papyrifera Marsh.) seedlings were grown in ambient (360 ppm) or twice ambient (720 ppm) atmospheric CO2 concentration ([CO2]) and at three soil temperatures (Tsoil = 7, 17 and 27 degrees C initially, increased to 10, 20 and 30 degrees C two months later, respectively) in a greenhouse for 4 months. In situ foliar gas exchange, in vivo carboxylation characteristics and chlorophyll fluorescence were measured after 2.5 and 4 months of treatment. Low Tsoil suppressed net photosynthetic rate (Pn), stomatal conductance (g(s)) and transpiration rate (E) in jack pine in both CO2 treatments and g(s) and E in white birch in ambient [CO2], but enhanced instantaneous water-use efficiency (IWUE) in both species after 2.5 months of treatment. Treatment effects on g(s) and E remained significant throughout the 4-month study. Low Tsoil reduced maximal carboxylation rate (Vcmax) and PAR-saturated electron transport rate (Jmax) in jack pine in elevated [CO2] after 2.5 months of treatment, but not after 4 months of treatment. Low Tsoil increased actual photochemical efficiency of photosystem II (PSII) in the light (DeltaF/Fm') in jack pine, but decreased DeltaF/Fm' in white birch after 4 months of treatment. In response to low Tsoil, photosynthetic linear electron transport to carboxylation (Jc) decreased in jack pine after 2.5 months and in white birch after 4 months of treatment. Low Tsoil increased the ratio of the photosynthetic linear electron transport to oxygenation (Jo) to the total photosynthetic linear electron transport rate through PSII (Jo/J(T)) in both species after 2.5 months of treatment, but the effects became statistically insignificant in white birch after 4 months of treatment. High Tsoil decreased foliar N concentration in white birch. Elevated [CO2] increased Pn, IWUE and Jc but decreased Jo/J(T) in both species at both measurement times except Jc in white birch after 2.5 months of treatment. Elevated [CO2] also decreased g(s) and E in white birch at high Tsoil, Vcmax in both species and triose phosphate utilization in white birch at low Tsoil after 4 months of treatment, and DeltaF/Fm' in white birch after 2.5 months of treatment. Elevated [CO2] also increased foliar N concentration in both species. Low Tsoil caused no permanent damage to PSII in either species, but jack pine responded and acclimated to low Tsoil more quickly than white birch. Photosynthetic down-regulation and a decrease in photosynthetic electron transport to photorespiration occurred in both species in response to elevated [CO2].

Detrital Zircons From the Jack Hills and Mount Narryer, Western Australia: Geochronological, Morphological, and Geochemical Evidence for Diverse >4000 Ma Source Rocks

NASA Astrophysics Data System (ADS)

Crowley, J. L.; Myers, J. S.; Sylvester, P. J.; Cox, R. A.

2004-05-01

Detrital zircons from all major clastic units in the Jack Hills and Mount Narryer metasedimentary belts, Western Australia, were analyzed for morphology, internal zoning, inclusion mineralogy, age, and trace element concentrations (latter two obtained by laser-ablation microprobe ICPMS). The results show that zircons were derived from a wide diversity of rocks, including previously described, >4000 Ma grains that are older than any known terrestrial rocks. In three metaconglomerate samples from the western Jack Hills, 4200-3800 Ma zircons ("old grains") comprise 14% of the population, 3800-3600 Ma grains form only 2%, and 3550-3250 Ma zircons ("young grains") are dominant with a significant peak at 3380 Ma. Old and young grains are interpreted as being from similar rock types because they are indistinguishable in trace element concentrations, size (several hundred microns), morphology (subequant, typically fragmented), internal zoning (typically both oscillatory and sector), and U concentration (50-200 ppm). Many of these properties suggest an intermediate plutonic source, whereas an evolved granitic source was previously interpreted from rare-earth element and oxygen isotope data. Detrital zircons in quartzites and metaconglomerates at Mount Narryer differ significantly from zircons from the western Jack Hills. Old grains comprise only 3% (most of which are 4200-4100 Ma), 3800-3600 Ma zircons form 31%, and there are peaks at 3650, 3600, and 3500 Ma. Old and young grains have similar properties that suggest granitic sources, such as elongate prismatic morphology, oscillatory zoning, high U concentrations (100-600 ppm), and xenotime and monazite inclusions. Trace element concentrations are broadly similar to those in Jack Hills zircons, with notable exceptions being generally higher U, smaller Ce and Eu anomalies, and lower Nb/Ta. It is considered unlikely that Jack Hills zircons were derived from granitic gneisses that surround the metasedimentary belts because only a few detrital grains match gneiss zircons in age, morphology, and U concentration. The sources were probably distal, or perhaps destroyed or removed from the region during Neoarchean tectonism. In contrast, Mount Narryer zircons are similar to gneiss zircons, suggesting they were derived from the gneisses, which may include a minor, currently undiscovered 4200-4100 Ma granitic component. Such diversity in age and nature of Hadean detrital zircons is compelling evidence that Earth's crust was heterogeneous by 4200 Ma.

ADVANCED DESIGNS OF MAGNETIC JACK-TYPE CONTROL ROD DRIVE

DOE Office of Scientific and Technical Information (OSTI.GOV)

Young, J.N.

1959-11-01

The magnetic jack is a device for positioning the control rods In a nuclear reactor, especially in a reactor containing water under pressure. Magnetic actuation precludes the need for shaft seals and eliminates the problems associated with mechanisms operating in water. It consists of a pressure shell, four sets of external stationary magnet coils (hold, grip, lift, pull down), and one Internal moving part (ammature) that impants linear motion to a cluster of rods. (W.L.H.)

ARC-1969-AC85-0978-2

NASA Image and Video Library

1985-12-23

QSRA (NASA 715) 400TH FLIGHT PARTICIPANTS. L-R: front row: Jim Ahlman, Bob Innis, Del Watson, Jim Lesko, Lee Mountz, Mike Herschel, Tom Kaisersatt, Jack Stephenson, Back row: Dennis Riddle, Neis Watz, Jack Franklin, Gordon Hardy, Bob Hinds, Charlie Hynes, Richard Young, Jim Martin, Joe Eppel, John White, Bob America, Hien Tran, Bill Bjorkman. Note: Used in publication in Flight Research at Ames; 57 Years of Development and Validation of Aeronautical Technology NASA SP-1998-3300 fig. 112

Astronaut Jack Fischer at Air and Space Museum

NASA Image and Video Library

2017-11-03

NASA astronaut Jack Fischer sticks his finger in a liquid that was just boiling by vacuum, during a Stem in 30 experiment, Friday, Nov. 3, 2017 at Smithsonian's National Air and Space Museum in Washington. During Expedition 52, Fischer completed hundreds of scientific experiments and two spacewalks, and concluded his 136-day mission onboard the International Space Station, when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in September 2017. Photo Credit: (NASA/Aubrey Gemignani)

Astronaut Jack Lousma hooks up cable for rate gyro six pack during EVA

NASA Technical Reports Server (NTRS)

1973-01-01

Astronaut Jack R. Lousma, Skylab 3 pilot, hooks up a 23 ft. 2 in. connecting cable for the rate gyro six pack during extravehicular activity (EVA) on August 24, 1973, as senn in this photographic reproduction taken from a color television tranmsission made by a TV camera aboard the Skylab space station in Earth orbit. The rate gyros were mounted inside the Multiple Docking Adapter opposite the Apollo Telescope Mount control and display console.

Astronaut Jack Lousma participates in EVA to deploy twin pole solar shield

NASA Image and Video Library

1973-08-06

SL3-115-1833 (6 Aug. 1973) --- Astronaut Jack R. Lousma, Skylab 3 pilot, participates in the Aug. 6, 1973, extravehicular activity (EVA) during which he and astronaut Owen K. Garriott, science pilot, deployed the twin pole solar shield to help shade the Orbital Workshop (OWS). Note the striking reflection of the Earth in Lousma?s helmet visor. This photograph was taken with a 70mm hand-held Hasselblad camera. Photo credit: NASA

Astronaut Jack Fischer at Air and Space Museum

NASA Image and Video Library

2017-11-03

An audience member asks a question after a presentation by NASA astronaut Jack Fischer about his time onboard the International Space Station (ISS) during Expeditions 51/52, Friday, Nov. 3, 2017 at Smithsonian's National Air and Space Museum in Washington. During Expedition 52, Fischer completed hundreds of scientific experiments and two spacewalks, and concluded his 136-day mission when he landed in a remote area near the town of Zhezkazgan, Kazakhstan in September 2017. Photo Credit: (NASA/Aubrey Gemignani)

Astronaut Jack Lousma - Inflight Medical Support System (IMSS) - JSC

NASA Image and Video Library

1973-01-01

S73-28423 (16 June 1973) --- Astronaut Jack R. Lousma, Skylab 3 pilot, reaches into a medical kit, part of the Inflight Medical Support System (IMSS), during training for the second manned Skylab Earth-orbital mission. This activity took place in the OWS trainer in the Mission Simulation and Training Facility at the Johnson Space Center (JSC). Other Skylab 3 crewmen are astronaut Alan L. Bean, commander, and scientist-astronaut Owen K. Garriott, science pilot. Photo credit: NASA

Military Retirement Benefits.

DTIC Science & Technology

1984-05-17

RD-fi49 439 MILITARY RETIREMENT BENEFITS (U) ARMY WAR COLL CARLISLE i/i 7" BARRACKS PA J D MEDLIN V MAY 84UNCLASSIFIED F/6 5/9 NL E=hhhhIhh SENSEhhhhh...appropriate military service or government agency. MILITARY RETIREMENT BENEFITS BY COLONEL JACK D. MEDLIN MEDICAL SERVICE cl- " JAN25 C r- Y4 . S17 MY...PERIOD COVERED Military Retirement Benefits S 6. PERFORMING ORG. REPORT NUMBER 7. AUTHOR(e) 6. CONTRACT OR GRANT NUMBER() Colonel Jack D. Medlin

Physical and Chemical Characterization Of Greater Yam (Dioscorea Alata) And Jack Bean (Canavalia Ensiformis) - Based Composite Flour

NASA Astrophysics Data System (ADS)

Affandi, D. R.; Praseptiangga, D.; Nirmala, F. S.; Sigit Amanto, B.; Atmaka, W.

2017-04-01

Indonesia is a tropical country that has great potential in agriculture. Tubers and legumes as examples of the potential commodities are needed to be more developed. Flour production is one of the best alternatives to be chosen as the downstream stage of the tubers and legumes utilization. Greater yam (Dioscorea alata) and jack bean (Canavalia ensiformis) were used in this study. This study was conducted to determine best formula of composite flour based on physical, chemical, and functional characterization of composite flour produced. Variations of formula used was the ratio of greater yam flour and jack bean flour, which were 85:15 (F1), 70:30 (F2), 55:45 (F3), respectively, and this study was conducted using completely randomized design (CRD). The formula variations didn’t show any significant effect on the water absorption capability, water holding capacity (WHC), oil holding capacity (OHC), swelling power, and starch content of the composite flour. However, the formula variations had a significant influence on the colour, proximate parameters, amylose and amylopectin content, resistant starch content, dietary fibre, total phenol, and antioxidant activity of the composite flour produced. Considering the results of physical, chemical, and functional characteristics of composite flour, formula (F1) was selected as the best composite flour developed from greater yam and jack bean flours.

Lithium in Jack Hills zircons: Evidence for extensive weathering of Earth's earliest crust

NASA Astrophysics Data System (ADS)

Ushikubo, Takayuki; Kita, Noriko T.; Cavosie, Aaron J.; Wilde, Simon A.; Rudnick, Roberta L.; Valley, John W.

2008-08-01

In situ Li analyses of 4348 to 3362 Ma detrital zircons from the Jack Hills, Western Australia by SIMS reveal that the Li abundances (typically 10 to 60 ppm) are commonly over 10,000 times higher than in zircons crystallized from mantle-derived magmas and in mantle-derived zircon megacrysts (typically < 2 ppb). High Li concentrations in zircons (10 to 250 ppm) have also been found in igneous zircons from three continental parent rocks: granites, Li-rich pegmatites, and migmatites in pelitic metasediment. The substitution of trivalent cations (REEs and Y) in zircon correlates with Li + 1 and P + 5 , suggesting that an interstitial site for Li, as well as the xenotime substitution for P, provides charge balance for REEs. Li is thus fixed in the zircon structure by coupled substitutions, and diffusive changes in [Li] composition are rate-limited by slow diffusion of REEs. The Jack Hills zircons also have fractionated lithium isotope ratios ( δ7Li = - 19 to + 13‰) about five times more variable than those recorded in primitive ocean floor basalts (2 to 8‰), but similar to continental crust and its weathering products. Values of δ7Li below - 10‰ are found in zircons that formed as early as 4300 Ma. The high Li compositions indicate that primitive magmas were not the source of Jack Hills zircons and the fractionated values of δ7Li suggest that highly weathered regolith was sampled by these early Archean magmas. These new Li data provide evidence that the parent magmas of ancient zircons from Jack Hills incorporated materials from the surface of the Earth that interacted at low temperature with liquid water. These data support the hypothesis that continental-type crust and oceans existed by 4300 Ma, within 250 million years of the formation of Earth and the low values of δ7Li suggest that weathering was extensive in the early Archean.

View of Jack Lousma's hands using silverware to gather food at food station

NASA Technical Reports Server (NTRS)

1973-01-01

A close-up view of Skylab 3 pilot Jack Lousma's hands using a silverware utensil to gather food at the food station, in this photographic reproduction taken from a television transmission made by a color TV camera aboard the Skylab space station in Earth orbit. Astronaut Alan L. Bean, commander, had just zoomed the TV camera in for this closeup of the food tray following a series of wide shots of Lousma at the food station.

ASTRONAUT LOUSMA, JACK - EGRESS - SKYLAB 3 COMMAND MODULE - PACIFIC

NASA Image and Video Library

1973-09-25

S73-36435 (25 Sept. 1973) --- Astronaut Jack R. Lousma, Skylab 3 pilot, egresses the Skylab 3 Command Module aboard the prime recovery ship, USS New Orleans, during recovery operations in the Pacific Ocean. Astronauts Lousma; Alan L. Bean, commander; and Owen L. Garriott, science pilot, had just completed a successful 59-day visit to the Skylab space station in Earth orbit. The Skylab 3 spacecraft splashed down in the Pacific about 230 miles southwest of San Diego, California. Photo credit: NASA

BOREAS TF-4 CO2 and CH4 Chamber Flux Data from the SSA

NASA Technical Reports Server (NTRS)

Anderson, Dean; Striegl, Robert; Wickland, Kimberly; Hall, Forrest G. (Editor); Conrad, Sara (Editor)

2000-01-01

The BOREAS TF-4 team measured fluxes of CO2 and CH4 across the soil-air interface in four ages of jack pine forest at the BOREAS SSA during August 1993 to March 1995. Gross and net flux of CO2 and flux of CH4 between soil and air are presented for 24 chamber sites in mature jack pine forest, 20-year-old, 4-year-old, and clear cut areas. The data are stored in tabular ASCII files.

Analysis of Disaster Planning in Business and Industry

DTIC Science & Technology

1993-04-01

Alternatives, 13 May 1991, 1. 13. Deegan , Joseph, and Jack Jolley. "Selling Crisis Management." Security Management Jun 1985, 50. 14. Atkin, Leslie, ed. "PG... Deegan , Joseph, and Jack Jolley. "Selling Crisis Management." Security Management Jun 1985, 50. 16. Carey, John. "Getting Business to Think About the...1985, 5. 22. Aronoff, Craig E., and John L. Ward. "Why Owners Don’t Plan." Nation’s Business Jun 1990, 59. 23. Phelps, Norman L. "Setting Up a Crisis

Singular vectors for the WN algebras

NASA Astrophysics Data System (ADS)

Ridout, David; Siu, Steve; Wood, Simon

2018-03-01

In this paper, we use free field realisations of the A-type principal, or Casimir, WN algebras to derive explicit formulae for singular vectors in Fock modules. These singular vectors are constructed by applying screening operators to Fock module highest weight vectors. The action of the screening operators is then explicitly evaluated in terms of Jack symmetric functions and their skew analogues. The resulting formulae depend on sequences of pairs of integers that completely determine the Fock module as well as the Jack symmetric functions.

A kinetic study of jack-bean urease denaturation by a new dithiocarbamate bismuth compound

NASA Astrophysics Data System (ADS)

Menezes, D. C.; Borges, E.; Torres, M. F.; Braga, J. P.

2012-10-01

A kinetic study concerning enzymatic inhibitory effect of a new bismuth dithiocarbamate complex on jack-bean urease is reported. A neural network approach is used to solve the ill-posed inverse problem arising from numerical treatment of the subject. A reaction mechanism for the urease denaturation process is proposed and the rate constants, relaxation time constants, equilibrium constants, activation Gibbs free energies for each reaction step and Gibbs free energies for the transition species are determined.

A sperm-agglutinating lectin from seeds of Jack fruit (Artocarpus heterophyllus).

PubMed

Namjuntra, P; Muanwongyathi, P; Chulavatnatol, M

1985-04-30

A lectin specific for N-acetylgalactosamine was isolated from seed extract of Jack fruit (Artocarpus heterophyllus) by ammonium sulfate precipitation, followed by affinity chromatography on a Affigel-galactosamine-agarose column. The lectin possessed agglutinating activities for human and rat sperm as well as human red blood cells. It was found to have Mr = 62,000 consisting of two dissimilar subunits of Mr = 18,000 and 13,000. It also cross-reacted with an antibody against the lectin of Osage Orange (Maclura pomifera).

Who and How: Comprehensive RNA-Based BodyfluID Assay to Provide Context to a Recovered DNA Profile

DTIC Science & Technology

2015-08-25

5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 5c. PROGRAM ELEMENT NUMBER 5b. GRANT NUMBER 5a. CONTRACT NUMBER Form Approved OMB NO...summarizes the work performed for the full project period. The views, opinions and/or findings contained in this report are those of the author(s) and...OF RESPONSIBLE PERSON 19b. TELEPHONE NUMBER Jack Ballantyne Jack Ballantyne, Erin Hanson c. THIS PAGE The public reporting burden for this

BOREAS TGB-8 Photosynthetic Rate Data over the SSA-OBS and the SSA-OJP

NASA Technical Reports Server (NTRS)

Hall, Forrest G. (Editor); Conrad, Sara K. (Editor); Lerdau, Manuel

2000-01-01

The BOREAS TGB-8 team collected data to investigate the controls over NMHC fluxes from boreal forest tree species. This data set includes measurements of photosynthetic rates at mature jack pine and black spruce sites. The data were collected at the OJP and OBS tower flux locations in the BOREAS SSA. These areas contained mature stands of jack pine and black spruce and were the focal sites in the BOREAS program for studies of biosphere/atmosphere exchange from these two habitat types. The OBS site is situated in a black spruce/sphagnum bog with the largest trees 155 years old and 10-15 m tall. The OJP site is in a jack pine forest, 80 to 120 years old, which lies on a sandy bench of glacial outwash with the largest tree standing 15 m tall. Temporally, the data cover the period of 24-May-1994 to 19-Sep-1994. The data are stored in tabular ASCII files.

Jack-of-all-trades effects drive biodiversity–ecosystem multifunctionality relationships in European forests

PubMed Central

van der Plas, Fons; Manning, Peter; Allan, Eric; Scherer-Lorenzen, Michael; Verheyen, Kris; Wirth, Christian; Zavala, Miguel A.; Hector, Andy; Ampoorter, Evy; Baeten, Lander; Barbaro, Luc; Bauhus, Jürgen; Benavides, Raquel; Benneter, Adam; Berthold, Felix; Bonal, Damien; Bouriaud, Olivier; Bruelheide, Helge; Bussotti, Filippo; Carnol, Monique; Castagneyrol, Bastien; Charbonnier, Yohan; Coomes, David; Coppi, Andrea; Bastias, Cristina C.; Muhie Dawud, Seid; De Wandeler, Hans; Domisch, Timo; Finér, Leena; Gessler, Arthur; Granier, André; Grossiord, Charlotte; Guyot, Virginie; Hättenschwiler, Stephan; Jactel, Hervé; Jaroszewicz, Bogdan; Joly, François-Xavier; Jucker, Tommaso; Koricheva, Julia; Milligan, Harriet; Müller, Sandra; Muys, Bart; Nguyen, Diem; Pollastrini, Martina; Raulund-Rasmussen, Karsten; Selvi, Federico; Stenlid, Jan; Valladares, Fernando; Vesterdal, Lars; Zielínski, Dawid; Fischer, Markus

2016-01-01

There is considerable evidence that biodiversity promotes multiple ecosystem functions (multifunctionality), thus ensuring the delivery of ecosystem services important for human well-being. However, the mechanisms underlying this relationship are poorly understood, especially in natural ecosystems. We develop a novel approach to partition biodiversity effects on multifunctionality into three mechanisms and apply this to European forest data. We show that throughout Europe, tree diversity is positively related with multifunctionality when moderate levels of functioning are required, but negatively when very high function levels are desired. For two well-known mechanisms, ‘complementarity' and ‘selection', we detect only minor effects on multifunctionality. Instead a third, so far overlooked mechanism, the ‘jack-of-all-trades' effect, caused by the averaging of individual species effects on function, drives observed patterns. Simulations demonstrate that jack-of-all-trades effects occur whenever species effects on different functions are not perfectly correlated, meaning they may contribute to diversity–multifunctionality relationships in many of the world's ecosystems. PMID:27010076

BOREAS TGB-8 Starch Concentration Data Over the SSA-OBS and the SSA-OJP

NASA Technical Reports Server (NTRS)

Lerdau, Manuel; Hall, Forrest G. (Editor); Conrad, Sara K. (Editor)

2000-01-01

The BOREAS TGB-8 team collected data to investigate the controls over NMHC fluxes from boreal forest tree species. This data set includes measurements of starch concentrations in foliar samples at mature jack pine and black spruce sites. The data were collected at the OJP and OBS tower flux locations in the BOREAS SSA. These areas contained mature stands of jack pine and black spruce and were the focal sites in the BOREAS program for studies of biosphere/atmosphere exchange from these two habitat types. The OBS site is situated in a black spruce/sphagnum bog with the largest trees 155 years old and 10-15 m tall. The OJP site is in a jack pine forest, 80 to 120 years old, which lies on a sandy bench of glacial outwash with the largest tree standing 15 m tall. Temporally, the data cover the period of 24-May-1994 to 19-Sep-1994. The data are stored in tabular ASCII files.

Southwestern Surgical Congress Jack A. Barney award competition presenters - Where are they now?

PubMed

Kothari, Shanu N; Kallies, Kara J

2017-12-01

Resident research presentations at surgical conferences may encourage future research endeavors. 2010-2016 SWSC annual meeting programs were reviewed for presenters eligible for the Jack Barney award. Award recipients from 1987 to 2016 were included. There were 100 unique presenters eligible for the Jack Barney award, and 28 unique award recipients. Thirty-six (82%) presenters currently practice in a community setting, 5 (11%) at a university hospital, 2 (5%) internationally, and 1 (2%) in a military hospital. Scholarly articles were published by 41% of presenters. Sixteen of the 28 recipients (57%) practice in community hospitals, and 9 (32%) practice in university settings; 3 are still in training. Twenty recipients (71%) published after residency. Thirty percent and 25% of presenters and recipients are SWSC members, respectively. Peer-reviewed publications were frequent among eligible presenters and award recipients. Encouraging presenters to become SWSC members provides an opportunity for improved retention. Copyright © 2017 Elsevier Inc. All rights reserved.

Manuka honey (Leptospermum scoparium) inhibits jack bean urease activity due to methylglyoxal and dihydroxyacetone.

PubMed

Rückriemen, Jana; Klemm, Oliver; Henle, Thomas

2017-09-01

Manuka honey (Leptospermum scoparium) exerts a strong antibacterial effect. Bacterial enzymes are an important target for antibacterial compounds. The enzyme urease produces ammonia and enables bacteria to adapt to an acidic environment. A new enzymatic assay, based on photometric detection of ammonia with ninhydrin, was developed to study urease activity. Methylglyoxal (MGO) and its precursor dihydroxyacetone (DHA), which are naturally present in manuka honey, were identified as jack bean urease inhibitors with IC 50 values of 2.8 and 5.0mM, respectively. Urease inhibition of manuka honey correlates with its MGO and DHA content. Non-manuka honeys, which lack MGO and DHA, showed significantly less urease inhibition. MGO depletion from manuka honey with glyoxalase reduced urease inhibition. Therefore, urease inhibition by manuka honey is mainly due to MGO and DHA. The results obtained with jack bean urease as a model urease, may contribute to the understanding of bacterial inhibition by manuka honey. Copyright © 2017 Elsevier Ltd. All rights reserved.

Initial occurrence of Taylorella asinigenitalis and its detection in nurse mares, a stallion and donkeys in Kentucky.

PubMed

Meade, B J; Timoney, P J; Donahue, J M; Branscum, A J; Ford, R; Rowe, R

2010-07-01

In 1998, a newly identified bacterium Taylorella asinigenitalis was isolated from the external genitalia and reproductive tracts of nurse mares, a stallion and donkey jacks in Kentucky. An extensive regulatory effort was implemented to contain the outbreak including the tracing and testing of 232 horses and donkeys on 58 premises. T. asinigenitalis was isolated from the reproductive tract of 10 adult equids, including two donkey jacks, one Paint Quarter-horse stallion and seven draft-type breeding mares. None of the infected horses had clinical signs of reproductive tract disease. The odds of being culture positive were 20 times greater for a mare bred to a donkey than for a mare bred to a stallion. Approximately 18% of mares bred to either a carrier stallion or donkey jack were confirmed culture positive. Seventy-one percent of infected mares required more than one course of treatment to clear the organism from their reproductive tracts and one mare harbored the organism for more than 300 days.

Jack-of-all-trades effects drive biodiversity-ecosystem multifunctionality relationships in European forests.

PubMed

van der Plas, Fons; Manning, Peter; Allan, Eric; Scherer-Lorenzen, Michael; Verheyen, Kris; Wirth, Christian; Zavala, Miguel A; Hector, Andy; Ampoorter, Evy; Baeten, Lander; Barbaro, Luc; Bauhus, Jürgen; Benavides, Raquel; Benneter, Adam; Berthold, Felix; Bonal, Damien; Bouriaud, Olivier; Bruelheide, Helge; Bussotti, Filippo; Carnol, Monique; Castagneyrol, Bastien; Charbonnier, Yohan; Coomes, David; Coppi, Andrea; Bastias, Cristina C; Muhie Dawud, Seid; De Wandeler, Hans; Domisch, Timo; Finér, Leena; Gessler, Arthur; Granier, André; Grossiord, Charlotte; Guyot, Virginie; Hättenschwiler, Stephan; Jactel, Hervé; Jaroszewicz, Bogdan; Joly, François-Xavier; Jucker, Tommaso; Koricheva, Julia; Milligan, Harriet; Müller, Sandra; Muys, Bart; Nguyen, Diem; Pollastrini, Martina; Raulund-Rasmussen, Karsten; Selvi, Federico; Stenlid, Jan; Valladares, Fernando; Vesterdal, Lars; Zielínski, Dawid; Fischer, Markus

2016-03-24

There is considerable evidence that biodiversity promotes multiple ecosystem functions (multifunctionality), thus ensuring the delivery of ecosystem services important for human well-being. However, the mechanisms underlying this relationship are poorly understood, especially in natural ecosystems. We develop a novel approach to partition biodiversity effects on multifunctionality into three mechanisms and apply this to European forest data. We show that throughout Europe, tree diversity is positively related with multifunctionality when moderate levels of functioning are required, but negatively when very high function levels are desired. For two well-known mechanisms, 'complementarity' and 'selection', we detect only minor effects on multifunctionality. Instead a third, so far overlooked mechanism, the 'jack-of-all-trades' effect, caused by the averaging of individual species effects on function, drives observed patterns. Simulations demonstrate that jack-of-all-trades effects occur whenever species effects on different functions are not perfectly correlated, meaning they may contribute to diversity-multifunctionality relationships in many of the world's ecosystems.

AmeriFlux CA-SF3 Saskatchewan - Western Boreal, forest burned in 1998.

DOE Data Explorer

Amiro, Brian [University of Manitoba; Canadian Forest Service

2016-01-01

This is the AmeriFlux version of the carbon flux data for the site CA-SF3 Saskatchewan - Western Boreal, forest burned in 1998.. Site Description - The 1998 burn site (F98) was in the east part of Prince Albert National Park, Saskatchewan, in the Waskesiu Fire, ignited by lightning that burned about 1700 ha in July 1998. The pre-fire forest consisted of jack pine and black spruce stands, with some intermixed aspen. The fire was severe, consuming much of the top layer of organic soil and killing all trees. In 2001, much of the regenerating vegetation consisted of aspen saplings about 1 m tall and shorter jack pine and black spruce seedlings. An overstory of dead, leafless jack pine trees dominated at a height of 18 m. Sparse grass and herbs, such as fireweed (Epilobium angustifolium L.) covered the ground. There were a large number of fallen dead trees, mostly perched above the ground and not decomposing quickly.

Review of the crevalle jacks, Caranx hippos complex (Teleostei: Carangidae), with a description of a new species from West Africa

USGS Publications Warehouse

Smith-Vaniz, W.F.; Carpenter, K.E.

2007-01-01

The Caranx hippos species complex comprises three extant species: crevalle jack (Caranx hippos) (Linnaeus, 1766) from both the western and eastern Atlantic oceans; Pacific crevalle jack (Caranx caninus) Gu??nther, 1868 from the eastern Pacific Ocean; and longfin crevalle jack (Caranx fischeri) new species, from the eastern Atlantic, including the Mediterranean Sea and Ascension Island. Adults of all three species are superficially similar with a black blotch on the lower half of the pectoral fin, a black spot on the upper margin of opercle, one or two pairs of enlarged symphyseal canines on the lower jaw, and a similar pattern of breast squamation. Each species has a different pattern of hyperostotic bone development and anal-fin color. The two sympatric eastern Atlantic species also differ from each other in number of dorsal- and anal-fin rays, and in large adults of C. fischeri the lobes of these fins are longer and the body is deeper. Caranx hippos from opposite sides of the Atlantic are virtually indistinguishable externally but differ consistently in the expression of hyperostosis of the first dorsal-fin pterygiophore. The fossil species Caranx carangopsis Steindachner 1859 appears to have been based on composite material of Trachurus sp. and a fourth species of the Caranx hippos complex. Patterns of hyperostotic bone development are compared in the nine (of 15 total) species of Caranx sensu stricto that exhibit hyperostosis.

Skylab (SL)-3 - Astronaut Jack R. Lousma - Utensils

NASA Image and Video Library

1973-09-19

S73-34198 (1 Aug. 1973) --- A close-up view of the hands of astronaut Jack R. Lousma, Skylab 3 pilot, using a silverware utensil to gather food at the food station, in this photographic reproduction taken from a television transmission made by a color TV camera aboard the Skylab space station in Earth orbit. Astronaut Alan L. Bean, commander, had just zoomed the TV camera in for this close-up of the food tray following a series of wide shots of Lousma at the food station. Photo credit: NASA

KENNEDY SPACE CENTER, FLA. - In the Columbia Debris Hangar, Jack Nowling moves a box filled with part of the Columbia debris. About 83,000 pieces were shipped to KSC during search and recovery efforts in East Texas. An area of the Vehicle Assembly Building is being prepared to store the debris.

NASA Image and Video Library

2003-09-10

KENNEDY SPACE CENTER, FLA. - In the Columbia Debris Hangar, Jack Nowling moves a box filled with part of the Columbia debris. About 83,000 pieces were shipped to KSC during search and recovery efforts in East Texas. An area of the Vehicle Assembly Building is being prepared to store the debris.

Forest Modeling of Jack Pine Trees for BOREAS

NASA Technical Reports Server (NTRS)

Moghhadam, Mahta; Saatchi, Sasan

1994-01-01

As a part of the intensive field campaign for the Boreal forest ecosystem-atmosphere research (BOREAS) project in August 1993, the NASA/JPL AIRSAR covered an area of about 100 km by 100 km near the Prince Albert National Park in Saskatchewan, Canada. At the same time, ground-truth measurements were made in several stands which have been selected as the primary study sites, as well as in some auxiliary sites. This paper focuses on an area including Jack Pine stands in the Nipawin area near the park.

Service Cart For Engines

NASA Technical Reports Server (NTRS)

Ng, Gim Shek

1995-01-01

Cart supports rear-mounted air-cooled engine from Volkswagen or Porsche automobile. One person removes, repairs, tests, and reinstalls engine of car, van, or home-built airplane. Consists of framework of wood, steel, and aluminum components supported by four wheels. Engine lifted from vehicle by hydraulic jack and gently lowered onto waiting cart. Jack removed from under engine. Rear of vehicle raised just enough that engine can be rolled out from under it. Cart easily supports 200-lb engine. Also used to hold transmission. With removable sheet-metal top, cart used as portable seat.

Astronaut Jack Lousma seen outside Skylab space station during EVA

NASA Image and Video Library

1973-08-06

S73-31976 (5 Aug. 1973) --- Astronaut Jack R. Lousma, Skylab 3 pilot, is seen outside the Skylab space station in Earth orbit during the Aug. 5, 1973 Skylab 3 extravehicular activity (EVA) in this photographic reproduction taken from a television transmission made by a color TV camera aboard the space station. Scientist-astronaut Owen K. Garriott, Skylab 3 science pilot, participated in the EVA with Lousma. During the EVA the two crewmen deployed the twin pole solar shield to help shade the Orbital Workshop. Photo credit: NASA

A kidney from hell? A nephrological view of the Whitechapel murders in 1888.

PubMed

Wolf, Gunter

2008-10-01

In the poor Whitechapel district of the East End of London in the fall of 1888, at least five prostitutes were brutally murdered, and in all but one case, also mutilated. The murderer was never caught and became known by his nickname 'Jack the Ripper'. The left kidney and the uterus were cut out and taken away from one of the victims named Catherine Eddowes. A kidney was also cut out of the body from another victim, but not taken away. Two weeks later, George Lusk, president of the Whitechapel Vigilance Committee, received a small cardboard box with half of a longitudinally divided kidney and a letter entitled 'From hell' claiming that the kidney inside the box was taken from the victim. The kidney was brought to Dr Thomas Horrocks Openshaw, the Curator of the London Pathological Museum, where the kidney could be microscopically examined. The press jumped on the topic and made a circumstantial case that this kidney had been indeed torn from the body of Catherine Eddowes. According to the later memoirs of Major Henry Smith of the City Police published more than 20 years after the incident, the kidney left in the corpse of Catherine Eddowes was in an advanced stage of Bright's disease and the kidney sent to George Lusk was in exactly a similar stage. Today, the majority of criminologists believe that the kidney sent to Mr Lusk was a hoax as were other letters signed with Jack the Ripper. However, the murderer took organs from his victims, and in the case of Catherine Eddowes, the kidney. Serial killers often mutilate their victims and abscond with the removed body parts as trophies. By removing the kidney from Catherine Eddowes, Jack the Ripper may have tried to take possession of the conscience, emotions and desires of one of his victims, attributes residing in the kidney as described in the Bible. Jack the Ripper was never caught; many suspects have been suggested, and the murder series ended as suddenly as it had begun. We will never know who this mentally disturbed 'nephrophilic' was. Today, the story of Jack the Ripper is part of contemporary culture.

Characterization of inclusions in terrestrial impact formed zircon: Constraining the formation conditions of Hadean zircon from Jack Hills, Western Australia

NASA Astrophysics Data System (ADS)

Faltys, J. P.; Wielicki, M. M.; Sizemore, T. M.

2017-12-01

Due to the discovery and subsequent geochemical analysis of Hadean terrestrial material (e.g. detrital zircon from Jack Hills, Western Australia), a dramatic paradigm shift has occurred in the hypothesized near surface conditions of the first 500 million years of Earth's evolution. From a hellish setting riddled with impactors and not fit for life to a much milder environment that may have been uniquely suitable for the origin of life. Geochemical analyses of these ancient materials have been used to suggest the presence of water at or near the surface as well as the existence of continental crust during the Hadean, both of which have been suggested as necessary for the origin of life. However, the intensity of extraterrestrial bombardment during the Hadean and the effects of such events on the origin of life remains poorly understood. Clearly, as evidenced by Phanerozoic impact events, extraterrestrial impactors have the potential to dramatically effect the environment, particularly the biosphere. Early Earth likely experienced multiple large impact events, as evidenced by the lunar record, however whether those impacts were sufficient to frustrate the origin of life remains an open question. Although multiple lines of evidence, including the inclusion population, suggest the formation of Hadean zircon from Jack Hills as crystallizing in an under-thrust environment from S-type magmas, a recent study has suggested their formation in an impact melt environment analogous to a portion of the Sudbury Igneous Complex at the Sudbury impact structure. To determine between these two formation scenarios we have under-taken an inclusion study of terrestrial impact formed zircon from four of the largest terrestrial impact structures (Sudbury, Canada; Manicouagan, Canada; Vredefort, South Africa; Morokweng, South Africa), to compare to the vast inclusion dataset that exists for Jack Hills zircon. Preliminary data suggests a different inclusion population, from Hadean zircon, associated with impact formed zircon; however, if certain populations of the Jack Hills record appear to share inclusion assemblages with impact formed zircon, this could provide a tool to constrain the frequency and timing of large impactors on early Earth and their possible effects on conditions conducive for the origin of life.

Prediction methods of spudcan penetration for jack-up units

NASA Astrophysics Data System (ADS)

Zhang, Ai-xia; Duan, Meng-lan; Li, Hai-ming; Zhao, Jun; Wang, Jian-jun

2012-12-01

Jack-up units are extensively playing a successful role in drilling engineering around the world, and their safety and efficiency take more and more attraction in both research and engineering practice. An accurate prediction of the spudcan penetration depth is quite instrumental in deciding on whether a jack-up unit is feasible to operate at the site. The prediction of a too large penetration depth may lead to the hesitation or even rejection of a site due to potential difficulties in the subsequent extraction process; the same is true of a too small depth prediction due to the problem of possible instability during operation. However, a deviation between predictive results and final field data usually exists, especially when a strong-over-soft soil is included in the strata. The ultimate decision sometimes to a great extent depends on the practical experience, not the predictive results given by the guideline. It is somewhat risky, but no choice. Therefore, a feasible predictive method for the spudcan penetration depth, especially in strata with strong-over-soft soil profile, is urgently needed by the jack-up industry. In view of this, a comprehensive investigation on methods of predicting spudcan penetration is executed. For types of different soil profiles, predictive methods for spudcan penetration depth are proposed, and the corresponding experiment is also conducted to validate these methods. In addition, to further verify the feasibility of the proposed methods, a practical engineering case encountered in the South China Sea is also presented, and the corresponding numerical and experimental results are also presented and discussed.

Tough new jack-up for rough seas

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1984-01-01

Rowan Company's new deepwater jack-up, Rowan Gorilla I, is scheduled to spud its initial well off the east coast of Canada later this month for a consortium of oil companies including Bow Valley-Husky and ATS Exploration Ltd. The new rig's class designation--Gorilla--reflects designers' expectations for the drilling unit that is suited to work in virtually all ice-free hostile environmental areas of the world. Rowan's confidence in the design, built by Marathon LeTourneau's Vicksburg, Mississippi yard, is reiterated by the fact that two additional rigs in the Gorilla class are being built. Rowan Gorilla II is being constructed at Marathon's Singaporemore » yard, and the Rowan Gorilla III is in early construction stages at the firm's Vicksburg yard. The three Gorilla-class rigs will cost in excess of $85 million each, including owner-furnished drilling equipment. This, according to owners, will make them among the costliest jack-ups in the world. Another record being claimed by the Gorilla-class drilling units is that they are the largest jack-ups in the world. Fully outfitted, a Gorilla contains 16,000 tons of steel. Its triangular hull measures 297 ft from bow to stern and 292 ft across the stern. The rig has a variable load of 2,750 tons for drilling consumables and 42,265 sq ft of deck space. Its ample storage capacity, along with its 503-ft leg length and certain design features, makes the rig compatible with hostile offshore areas, where it can continue drilling for long periods unattended.« less

Development of a smartphone-based pulse oximeter with adaptive SNR/power balancing.

PubMed

Phelps, Tom; Haowei Jiang; Hall, Drew A

2017-07-01

Millions worldwide suffer from diseases that exhibit early warnings signs that can be detected by standard clinical-grade diagnostic tools. Unfortunately, such tools are often prohibitively expensive to the developing world leading to inadequate healthcare and high mortality rates. To address this problem, a smartphone-based pulse oximeter is presented that interfaces with the phone through the audio jack, enabling point-of-care measurements of heart rate (HR) and oxygen saturation (SpO 2 ). The device is designed to utilize existing phone resources (e.g., the processor, battery, and memory) resulting in a more portable and inexpensive diagnostic tool than standalone equivalents. By adaptively tuning the LED driving signal, the device is less dependent on phone-specific audio jack properties than prior audio jack-based work making it universally compatible with all smartphones. We demonstrate that the pulse oximeter can adaptively optimize the signal-to-noise ratio (SNR) within the power constraints of a mobile phone (<; 10mW) while maintaining high accuracy (HR error <; 3.4% and SpO 2 error <; 3.7%) against a clinical grade instrument.

Comparative study on the effect of Eurycoma longifolia and Smilax myosotiflora on male rats fertility

NASA Astrophysics Data System (ADS)

Mahmoud, Amal Salem Farag; Noor, Mahanem Mat

2013-11-01

The effects of Eurycoma longifolia Jack and Smilax myosotiflora were studied on sperm quality include sperm count, motility, viability and histology of the testis and pregnancy rate after mating with fertile proved females, as well as litter size on Sprague-Dawley (S-D) adult male rats. After dosing them with distilled water group A, group B 150 mg/kg body weight of aqueous extract of E. longifolia roots, group C 150 mg/kg body weight aqueous extract of S. myosotiflora leaf and group D 150 mg/kg body weight of E. longifolia combined with 150 mg/kg S. myosotiflora body weight daily for 14 days of stage (a) and 28 days for stage (b) of treatments. Results exhibited no significant variation (P>0.05) of stage (a),while results showed that E. longifolia Jack increase (P<0.05) the sperm count, motility, viability and histology of the testis and gender (male) of the litter size respectively of stage (b). This study provides evidence that E. longifolia Jack is a potent stimulator of fertility in male rat.

Nutritional composition of minor indigenous fruits: cheapest nutritional source for the rural people of Bangladesh.

PubMed

Tariqul Islam Shajib, Mohammad; Kawser, Mahbuba; Nuruddin Miah, Mohammad; Begum, Parveen; Bhattacharjee, Lalita; Hossain, A; Fomsgaard, Inge S; Islam, Sheikh Nazrul

2013-10-01

In line of the development of a food composition database for Bangladesh, 10 minor indigenous fruits were analysed for their nutrient composition comprising ascorbic acid, carotenoids and mineral values. Nutrient data obtained have been compared with published data reported in different literatures, book and United States Department of Agriculture-National Nutrient Database for Standard Reference. Ascorbic acid was highest in Wood apple and lowest in Roselle. Monkey jack contained the highest amount of carotenoids, zinc and copper. Content of calcium, magnesium and phosphorous were found highest in Antidesma velutinum. Potassium was the highest in Wood apple followed by in Moneky jack. It was noted that most of the minor fruits have much higher amount of ascorbic acid than the national fruit - Jack fruit ripe, the king fruit - Mango ripe of Bangladesh and exotic fruits - Apple and Grapes. The nutrient values of these minor fruits would make awareness among the people for their mass consumption for healthy life and to grow more minor fruit trees from extinction in order to maintain biodiversity. Copyright © 2012 Elsevier Ltd. All rights reserved.

Jack of all trades masters novel host plants: positive genetic correlations in specialist and generalist insect herbivores expanding their diets to novel hosts

PubMed Central

GARCÍA-ROBLEDO, CARLOS; HORVITZ, CAROL C.

2011-01-01

One explanation for the widespread host specialization of insect herbivores is the “Jack of all trades-master of none” principle, which states that genotypes with high performance on one host will perform poorly on other hosts. This principle predicts that cross-host correlation in performance of genotypes will be negative. In this study we experimentally explored cross-host correlations and performance among families in four species (two generalist and two specialist) of leaf beetles (Cephaloleia spp.) that are currently expanding their diets from native to exotic plants. All four species displayed similar responses in body size, developmental rates and mortality rates to experimentally controlled diets. When raised on novel hosts, body size of larvae, pupae and adults were reduced. Development times were longer and larval mortality was higher on novel hosts. Genotype × host plant interactions were not detected for most traits. All significant cross-host correlations were positive. These results indicate very different ecological and evolutionary dynamics than those predicted by the “Jack of all trades-master of none” principle. PMID:22022877

Assessment of possible sources of microbiological contamination and water-quality characteristics of the Jacks Fork, Ozark National Scenic Riverways, Missouri; phase II

USGS Publications Warehouse

Davis, Jerri V.; Richards, Joseph M.

2002-01-01

In 1998, an 8-mile reach of the Jacks Fork was included on Missouri?s list of impaired waters as required by Section 303(d) of the Federal Clean Water Act. The identified pollutant on the Jacks Fork was fecal coliform bacteria. Potential sources of fecal contamination to the Jacks Fork include a wastewater treatment plant; campground pit-toilet or septic-system effluent; a large commercial, cross-country horseback trail riding facility; canoeists, boaters, and tubers; and cows.The U.S. Geological Survey, in cooperation with the National Park Service, conducted a study to better understand the extent and sources of microbiological contamination within the Jacks Fork from Alley Spring to the mouth, which includes the 8-mile 303(d) reach. Identification of the sources would provide the National Park Service and the State of Missouri with the information needed to craft a solution of abatement, regulation, prevention, and mitigation with the end result being the removal of the Jacks Fork from the 303(d) list. Fifteen sites were sampled from November 1999 through December 2000. An additional site was sampled one time. Samples were collected mostly during base-flow conditions during a variety of nonrecreational and recreational season river uses. Samples were analyzed for selected fecal indicator bacteria, physical properties, nutrients, and wastewater organic compounds. During the sampling period, the whole-body-contact recreation standard for fecal coliform (200 colonies per 100 milliliters of sample) was exceeded at three sites on August 10, 2000, and also at one site on May 11, June 7, and October 3, 2000. Fecal coliform densities and instantaneous loads generally increased from background concentrations at the Eminence site, peaked about 2 river miles downstream, and then decreased until the most downstream site sampled. Generally, the largest densities and loads at sites downstream from Eminence not related to wet-weather flow were observed during a trail ride held August 6 to12, 2000. A 24-hour sample collection effort was conducted the weekend of July 15 and 16, 2000, to investigate the effect that large numbers of swimmers, canoeists, and tubers had on fecal coliform densities in the Jacks Fork. Five or six samples were collected at six sites between Saturday morning and the following Sunday afternoon. No fecal coliform density at any of the sites sampled exceeded the whole-body-contact recreation standard. Because bacteria survive longer in stream-bed sediments than in water, a source of bacteria in the water column could be from resuspension of accumulated bacteria from streambed sediments. Water and streambed-sediment samples were collected at three sites on August 3, 2000, 1 week before a trail ride and again at three sites on 2 Assessment of Possible Sources of Microbiological Contamination of the Jacks Fork, Missouri?Phase II August 8, 2000, during a trail ride. Results indicate that fecal coliform bacteria densities increased substantially in the streambed sediment and the water column during the trail ride.Sixty-five Escherichia coli isolates obtained from water samples collected at 9 sites and 23 Escherichia coli isolates obtained from stream-bed-sediment samples collected at 5 sites were submitted for ribotyping analysis. Samples were collected in 2000 during a variety of nonrecreational and recreational season river uses, including trail rides, canoeing, tubing, and swimming. Of the 65 isolates from water samples, 40 percent were identified as originating from sewage, 29 percent from horse, 11 percent from cow, and 20 percent from an unknown source. Of the 23 isolates from streambed-sediment samples, 39 percent were identified as originating from sewage, 35 percent from horse, 13 percent from cow, and 13 percent from unknown sources.Analysis of physical property (dissolved oxygen, pH, specific conductance, and temperature) and nutrient (dissolved nitrite plus nitrate and total phosphorus) data

Closeup view of the nose and landing gear on the ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Close-up view of the nose and landing gear on the forward section of the Orbiter Discovery in the Orbiter Processing Facility at Kennedy Space Center. The Orbiter is being supported by jack stands in the left and right portion of the view. The jack stands attach to the Orbiter at the four hoist attach points, two located on the forward fuselage and two on the aft fuselage. Note the access platforms that surround and nearly touch the orbiter. - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

Differential effects of plant ontogeny and damage type on phloem and foliage monoterpenes in jack pine (Pinus banksiana).

PubMed

Erbilgin, Nadir; Colgan, L Jessie

2012-08-01

Coniferous trees have both constitutive and inducible defences that deter or kill herbivores and pathogens. We investigated constitutive and induced monoterpene responses of jack pine (Pinus banksiana Lamb.) to a number of damage types: a fungal associate of the mountain pine beetle (Dendroctonus ponderosae Hopkins), Grosmannia clavigera (Robinson-Jeffrey & R.W. Davidson); two phytohormones, methyl jasmonate (MJ) and methyl salicylate (MS); simulated herbivory; and mechanical wounding. We only included the fungal, MJ and mechanical wounding treatments in the field experiments while all treatments were part of the greenhouse studies. We focused on both constitutive and induced responses between juvenile and mature jack pine trees and differences in defences between phloem and needles. We found that phytohormone applications and fungal inoculation resulted in the greatest increase in monoterpenes in both juvenile and mature trees. Additionally, damage types differentially affected the proportions of individual monoterpenes: MJ-treated mature trees had higher myrcene and β-pinene than fungal-inoculated mature trees, while needles of juveniles inoculated with the fungus contained higher limonene than MJ- or MS-treated juveniles. Although the constitutive monoterpenes were higher in the phloem of juveniles than mature jack pine trees, the phloem of mature trees had a much higher magnitude of induction. Further, induced monoterpene concentrations in juveniles were higher in phloem than in needles. There was no difference in monoterpene concentration between phytohormone applications and G. clavigera inoculation in mature trees, while in juvenile trees MJ was different from both G. clavigera and simulated herbivory in needle monoterpenes, but there was no difference between phytohormone applications and simulated herbivory in the phloem.

Tall oil precursors and turpentine in Jack and Eastern White Pine

DOE Office of Scientific and Technical Information (OSTI.GOV)

Conner, A.H.; Diehl, M.A.; Rowe, J.W.

1980-04-01

The tall oil precursors and turpentine from jack pine (Pinus banksiana Lamb.) and eastern white pine (Pinus strobus L.) were investigated. The tall oil precursors (resin acids, fatty acids, and unsaponifiables were determined by chemical fractionation of the nonvolatile diethyl ether extractives (NVEE) of these speices: (approximate % resin acids, % fatty acids, % unsaponifiables, and % acids other that fatty and resin acids) - jack pine sapwood (10, 60, 10, 20%), heartwood (38, 12, 6, 44%); eastern white pine sapwood (11, 57, 9, 22%), and heartwood (11, 18, 10, 62%). The resin acids were a mixture of the pimaricmore » and abietic acids common to pines. In addition, eastern white pine contained major amounts of the resin acid, anticopalic acid. The fatty acids were predominately oleic, linoleic, and 5, 9, 12-octadecatrienoic acids. The unsaponsiables were a complex mixture of diterpenes and sterols (mainly campesterol and sitosterol). On treating these species with paraquat, lightwood occurred in the sapwood but not in the heartwood areas as we have oberved with other pines. The NVEE of the lightwood areas contained increased amounts of resin acids, unsaponifiables, and acids other than fatty and resin acids. The total fatty acid content was essentially unchanged. Since fatty acid components are preferentially lost by esterification with neutral alcoholic constituents in the unsaponifiables during the distillation refining of crude tall oil, the increased unsaponifiables relative to the constant fatty acid content might result in a net reduction in fatty acid recovery from lightered trees. The turpentine content of both jack and eastern white pine increased on lightering and was primarily a mixture of ..cap alpha..- and ..beta..-pinene.« less

The provenance of Archean clastic metasediments in the Narryer Gneiss Complex, western Australia: Trace element geochemistry, Nd isotopes, and U-Pb ages for detrital zircons

DOE Office of Scientific and Technical Information (OSTI.GOV)

Maas, R.; McCulloch, M.T.

1991-07-01

Clastic metasedimentary rocks of mid-Archean age from the Mt. Narryer and Jack Hills metasedimentary belts have REE patterns resembling those of mid- to late-Archean pelitic-quartzitic cratonic sequences elsewhere, and post-Archean continental rocks in general. Detrital zircons in the metasediments range in age from ca. 3,000 to 3,700 Ma. This indicates a provenance from mature cratonic sources controlled by K-rich granitic rocks. Additional minor sediment sources were identified as older, mainly chemical sedimentary sequences, ultramafic rocks, and felsic rocks characterized by low HREE contents, perhaps of tonalitic affinity. Differences between sedimentary REE patterns and those in the surrounding 3.73-3.0 Ga orthogneissmore » terrain, and between detrital zircon ages and the age distribution in the gneisses, suggest that the present association of the metasedimentary belts with the orthogneiss terrain is of tectonic origin. The occurrence of detrital zircons with U-Pb ages > 4 Ga in certain quartzites and conglomerates of the Jack Hills and Mt. Narryer metasedimentary sequences indicates a further, most likely granitic, source. {epsilon}{sub Nd}(T{sub Dep}) values in Jack Hills metasediments vary widely (+5 to {minus}12) but have a smaller range in the Mt. Narryer belt ({minus}5 to {minus}9). The lowest {epsilon}{sub Nd} values of both sequences are interpreted to reflect the presence of detritus derived from 4.1-4.2 Ga old LREE-enriched continental crust in proportions considerably larger ({ge} 10%) than estimated previously from the abundance of pre-4 Ga detrital zircons ({approx}3%). This would imply the former existence of significant volumes of pre-4 Ga continental crust in the provenance of the Mt. Narryer and Jack Hills metasediments.« less

Analysis of ITER NbTi and Nb3Sn CICCs experimental minimum quench energy with JackPot, MCM and THEA models

NASA Astrophysics Data System (ADS)

Bagni, T.; Duchateau, J. L.; Breschi, M.; Devred, A.; Nijhuis, A.

2017-09-01

Cable-in-conduit conductors (CICCs) for ITER magnets are subjected to fast changing magnetic fields during the plasma-operating scenario. In order to anticipate the limitations of conductors under the foreseen operating conditions, it is essential to have a better understanding of the stability margin of magnets. In the last decade ITER has launched a campaign for characterization of several types of NbTi and Nb3Sn CICCs comprising quench tests with a singular sine wave fast magnetic field pulse and relatively small amplitude. The stability tests, performed in the SULTAN facility, were reproduced and analyzed using two codes: JackPot-AC/DC, an electromagnetic-thermal numerical model for CICCs, developed at the University of Twente (van Lanen and Nijhuis 2010 Cryogenics 50 139-148) and multi-constant-model (MCM) (Turck and Zani 2010 Cryogenics 50 443-9), an analytical model for CICCs coupling losses. The outputs of both codes were combined with thermal, hydraulic and electric analysis of superconducting cables to predict the minimum quench energy (MQE) (Bottura et al 2000 Cryogenics 40 617-26). The experimental AC loss results were used to calibrate the JackPot and MCM models and to reproduce the energy deposited in the cable during an MQE test. The agreement between experiments and models confirm a good comprehension of the various CICCs thermal and electromagnetic phenomena. The differences between the analytical MCM and numerical JackPot approaches are discussed. The results provide a good basis for further investigation of CICC stability under plasma scenario conditions using magnetic field pulses with lower ramp rate and higher amplitude.

The influence of musical cadence into aquatic jumping jacks kinematics.

PubMed

Costa, Mário J; Oliveira, Cristiana; Teixeira, Genoveva; Marinho, Daniel A; Silva, António J; Barbosa, Tiago M

2011-01-01

The aim of this study was to analyze the relationships between the head-out aquatic exercise "Jumping jacks" kinematics and the musical cadence in healthy and fit subjects. Five young women, with at least one year of experience conducting head- out aquatic programs were videotaped in the frontal plane, with a pair of cameras providing a double projection (above and below the water surface). Subjects performed an incremental protocol of five bouts (120 b·min(-1), 135 b·min(-1), 150 b·min(-1), 165 b·min(-1) and 180 b·min(-1)) with 16 full cycles of the "Jumping jacks" exercise. Data processing and calculation of upper limbs' (i.e. hands), lower limbs' (i.e. feet) and center of mass' 2D linear velocity and displacement were computed with the software Ariel Performance Analysis System and applying the 2D-DLT algorithm. Subjects decreased the cycle period during the incremental protocol. Significant and negative relationships with the musical cadence were verified for the center of mass and upper limbs vertical displacement. On the other hand, for the lower limbs lateral velocity, a significant and positive relationship was observed. It is concluded that expert and fit subjects increase the lower limb's velocity to maintain the range of motion, while the upper limb's displacement is reduced to coupe the music cadence. Key pointsWhile performing the Jumping Jacks, expert and fit subjects increase their lower limbs segmental velocity to maintain the range of motion.The upper limbs displacement is reduced to maintain the music cadence.Expert and fit subjects present similar response for alternating or simultaneously head-out aquatic exercises when increasing the music cadence.

Zn uptake, physiological response and stress attenuation in mycorrhizal jack bean growing in soil with increasing Zn concentrations.

PubMed

Andrade, Sara A L; Gratão, Priscila L; Schiavinato, Marlene A; Silveira, Adriana P D; Azevedo, Ricardo A; Mazzafera, Paulo

2009-06-01

The influence of arbuscular mycorrhizal fungi (AMF) inoculation on Canavalia ensiformis growth, nutrient and Zn uptake, and on some physiological parameters in response to increasing soil Zn concentrations was studied. Treatments were applied in seven replicates in a 2 x 4 factorial design, consisting of the inoculation or not with the AMF Glomus etunicatum, and the addition of Zn to soil at the concentrations of 0, 100, 300 and 900 mg kg(-1). AMF inoculation enhanced the accumulation of Zn in tissues and promoted biomass yields and root nodulation. Mycorrhizal plants exhibited relative tolerance to Zn up to 300 mg kg(-1) without exhibiting visual symptoms of toxicity, in contrast to non-mycorrhizal plants which exhibited a significant growth reduction at the same soil Zn concentration. The highest concentration of Zn added to soil was highly toxic to the plants. Leaves of plants grown in high Zn concentration exhibited a Zn-induced proline accumulation and also an increase in soluble amino acid contents; however proline contents were lower in mycorrhizal jack beans. Plants in association or not with the AMF exhibited marked differences in the foliar soluble amino acid profile and composition in response to Zn addition to soil. In general, Zn induced oxidative stress which could be verified by increased lipid peroxidation rates and changes in catalase, ascorbate peroxidase, glutathione reductase and superoxide dismutase activities. In summary, G. etunicatum was able to maintain an efficient symbiosis with jack bean plants in moderately contaminated Zn-soils, improving plant performance under those conditions, which is likely to be due to a combination of physiological and nutritional changes caused by the intimate relation between fungus and plant. The enhanced Zn uptake by AMF inoculated jack bean plants might be of interest for phytoremediation purposes.

Teaching Scientists to Fish, as Inspired by Jack Dymond

NASA Astrophysics Data System (ADS)

Franks, S. E.

2004-12-01

It is almost inconceivable that as Jack Dymond's graduate student for eight years, I never mastered the skill of fly-fishing, a pursuit so near and dear to his heart. In fact, Jack did inspire me, not to tie flies and cast, but eventually to teach fellow scientists to fish. The work I'll present - connecting scientists and educators to achieve societal benefit - is profoundly influenced by Jack's dedication to applying scientific understanding and critical thinking to societal issues. With colleagues in the Centers for Ocean Sciences Education Excellence (COSEE), http://www.cosee.net/, I enable scientists to efficiently make meaningful contributions to educational outreach. A key goal of the multi-Center, national COSEE Network is helping scientists build the skills and acquire the resources needed to share their science with diverse audiences. At Scripps, we are piloting an innovative approach to helping scientists meet funding agencies' broader impact requirements. Key elements of the approach include: 1) services to identify educational outreach options that best fit scientists' research and preferences; 2) assistance establishing partnerships with educational outreach providers who have the skills and resources to develop and implement effective programs and exhibits; and 3) nuts and bolts (line and fly) assistance writing proposal text, drafting budgets, and coordinating with institutional business offices to ensure that the proposed educational outreach effort is compelling and sufficiently funded. Where does the fishing lesson come in? We facilitators of scientist-educator partnerships empower scientists to launch enduring collaborations. Once comfortable working with top-notch educational organizations, scientists can tap these resources, project after project, often with little or no additional involvement on our part. Our initial investment in brokering the relationships is richly rewarded. By helping scientists get started, it's as if we are teaching them to fish, rather than merely giving them fish.

KENNEDY SPACE CENTER, FLA. - James Harrison (left), Jack Nowling (center) and Amy Norris (right) pack up part of the debris stored in the Columbia Debris Hangar. An area of the Vehicle Assembly Building is being prepared to store the debris. About 83,000 pieces were shipped to KSC during search and recovery efforts in East Texas.

NASA Image and Video Library

2003-09-10

KENNEDY SPACE CENTER, FLA. - James Harrison (left), Jack Nowling (center) and Amy Norris (right) pack up part of the debris stored in the Columbia Debris Hangar. An area of the Vehicle Assembly Building is being prepared to store the debris. About 83,000 pieces were shipped to KSC during search and recovery efforts in East Texas.

KENNEDY SPACE CENTER, FLA. - James Harrison (left), Jack Nowling (center) and Amy Norris (right) pack up some of the debris stored in the Columbia Debris Hangar. About 83,000 pieces were shipped to KSC during search and recovery efforts in East Texas. An area of the Vehicle Assembly Building is being prepared to store the debris.

NASA Image and Video Library

2003-09-10

KENNEDY SPACE CENTER, FLA. - James Harrison (left), Jack Nowling (center) and Amy Norris (right) pack up some of the debris stored in the Columbia Debris Hangar. About 83,000 pieces were shipped to KSC during search and recovery efforts in East Texas. An area of the Vehicle Assembly Building is being prepared to store the debris.

BOREAS TE-12 SSA Leaf Water Potential Data

NASA Technical Reports Server (NTRS)

Hall, Forrest G. (Editor); Curd, Shelaine (Editor); Walter-Shea, Elizabeth A.; Mesarch, Mark A.; Chen, L.; Yang, Litao

2000-01-01

The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-12 (Terrestrial Ecology) team collected water potential data in 1993 and 1994 from aspen, jack pine, and black spruce leaves/needles. Collections were made at the Southern Study Area Nipawin Fen Site (SSA FEN), Young Jack Pine (YJP), Young Aspen (YA), Old Aspen (OA), and Old Black Spruce (OBS) sites. Measurements were made using a pressure chamber on a platform in the field. The data are provided in tabular ASCII files. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

iss051e041844

NASA Image and Video Library

2017-05-12

iss051e041844 (05/12/2017) -- NASA astronaut Jack Fischer is seen during the 200th spacewalk in support of the International Space Station. Expedition 51 Commander Peggy Whitson and Flight Engineer Jack Fischer of NASA successfully replaced a large avionics box that supplies electricity and data connections to the science experiments. The astronauts also completed additional tasks to install a connector that will route data to the Alpha Magnetic Spectrometer, repair insulation at the connecting point of the Japanese robotic arm, and install a protective shield on the Pressurized Mating Adapter-3. This adapter will host a new international docking port for the arrival of commercial crew spacecraft.

Astronaut Jack Lousma in Lower Body Negative Pressure Device

NASA Image and Video Library

1973-08-09

S73-34180 (7 Aug. 1973) --- A medium close-up view of astronaut Jack R. Lousma, Skylab 3 pilot, in the Lower Body Negative Pressure Device (LBNPD), as astronaut Alan L. Bean, commander, works around the leg band area. This portion of the LBNPD MO-92 experiment was televised on Aug. 7, 1973. The LBNPD experiment is to provide information concerning the time course of cardiovascular adaptation during flight, and to provide in-flight data for predicting the degree of orthostatic intolerence and impairment of physical capacity to be expected upon returning to Earth environment. The bicycle ergometer is in the background, partially visible behind Bean. Photo credit: NASA

Evaluation of a Videodisc Delivery System for Teaching Students to Troubleshoot the AN/VRC-12 Medium-Powered Radio Series.

DTIC Science & Technology

1982-10-31

Commaznd -- Fo,,.t Motoe, VIti ia 23651 85 8 8 030 NOTICES This report has been reviewed and is approved. FRANK E. GIUNTI F. A. NERONE Chief, Instructional...between the RT-524 antenna coaxial jack and the antenna matching network coaxial jack. 23. (6-1-5) T F Within the MT-1029, the negative side of the...1205 FRE@. SEfjITIVE NETWORKS 16.36 18.00 20.20 - CA2606 SEMrCO4OUCTORS 10.48 9.00 7.2a CR2607 T/S THE At!/GRA-39 19.60 15.00 10.20 CA42&0 SIGNAL

Orthopaedic jack for scoliosis surgery purposes: Concept and design

NASA Astrophysics Data System (ADS)

Supriadi, Sugeng; Radhana, Rakha M.; Hidayanto, Taufik Eko; Whulanza, Yudan; Ali, Notario, Nanda; Rahyussalim

2017-02-01

Scoliosis surgery is one of the most difficult orthopedic surgery that have been committed today as the failure rate of orthopedic surgery for adult patients is 15%. Aside from the long duration of surgery, this surgical failure is caused by failure in biomedical instrumentation. Furthermore, this kind of failure is causing inefficiency of the surgery. With current known orthopedic surgery method, three surgeons are needed in a single orthopedic surgery. In fact, a single surgery can take up to 8 hours to be done, which increases the risk of surgical failure. Based on this problem, authors hope that our orthopedic jacks could solve the problem.

BOREAS RSS-4 1994 Southern Study Area Jack Pine LAI and FPAR Data

NASA Technical Reports Server (NTRS)

Hall, Forrest G. (Editor); Nickeson, Jaime (Editor); Plummer, Stephen

2000-01-01

The RSS-4 team collected several data sets related to leaf, plant, and stand physical, optical, and chemical properties. This data set contains leaf area indices and FPAR measurements that were taken at the three conifer sites in the BOREAS SSA during August 1993 and at the jack pine tower flux and a subset of auxiliary sites during July and August 1994. The measurements were made with LAI-2000 and Ceptometer instruments. The measurements were taken for the purpose of model parameterization and to test empirical relationships that were hypothesized between biophysical parameters and remotely sensed data. The data are stored in tabular ASCII files.

Deformations of temporary wooden supports used to reduce building deflections in mining areas

NASA Astrophysics Data System (ADS)

Gromysz, Krzysztof

2018-04-01

Temporary supports, consisting of a stack of wooden elements and a hydraulic jack, are used in the process of removing deflections in buildings with one to three aboveground floors in mining areas. During uneven raising, the supports are loaded monotonically, unloaded and loaded cyclically. Laboratory tests were designed for the supports. For the investigated range of loads of 0 to 400 kN, under a growing load, a linear relationship exists between a load and the change in the stack length, which signifies that the deformations of wooden elements and displacements related to their mutual interactions increase proportionally. A seemingly higher stack stiffness is seen at the beginning of the unloading process and for cyclical loads, meaning that in this phase of loading, the material deformation of the wooden elements and the jack is responsible for changing the jack length in this load phase, with a negligible presence of mutual displacements of wooden elements. The support, after being unloaded, returns to the initial position and its permanent deformations are not observed. The stiffness of a temporary support decreases as the height of the stack of wooden elements increases.

Stress Related Fracturing in Dimension Stone Quarries

NASA Astrophysics Data System (ADS)

Hamdi Deliormanli, Ahmet; Maerz, Norbert H.

2016-10-01

In Missouri, the horizontal stresses (pressures) in the near surface rock are uncommonly high. While the vertical stresses in rock are simply a function of the weight of the overlying rock, near surface stresses can be many times higher. The near surface horizontal stresses can be in excess of 5 times greater than the vertical stresses. In this research, Flatjack method was used to measure horizontal stress in Red Granite Quarry in Missouri. The flat jack method is an approved method of measuring ground stresses. A saw cut is used to “relax” the stress in the ground by allowing the rock to deform inwards the cut. A hydraulic flat jack is used to inflate the slot; to push the rock back to its stressed position, as measured by a strain gauge on either side of the slot. The pressure in the jack, when the rock is exactly back to its original position, is equal to the ground stress before the saw cut was made. According to the results, present production direction for each pit is not good because the maximum stress direction is perpendicular with production direction. This case causes unintentional breakage results in the loss rock. The results show that production direction should be changed.

AmeriFlux CA-SF2 Saskatchewan - Western Boreal, forest burned in 1989.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Amiro, Brian

This is the AmeriFlux version of the carbon flux data for the site CA-SF2 Saskatchewan - Western Boreal, forest burned in 1989.. Site Description - Amiro_et_al_2006, AFM/136:...The 1989 burn site (F89) was northeast of Prince Albert National Park, Saskatchewan, with the humancaused fire covering 13,500 ha. Parts of the area had been logged prior to the fire, and slash residues would have been burned in some locations. Parts of the area were aerially seeded with jack pine seeds in the winter of 1990. The present tree canopy was composed of balsam poplar (Populus balsamifera L.), jack pine, trembling aspen, andmore » birch (Betula papyrifera Marsh.) and prior to the fire, the stand consisted of these same species aswell asblack spruce.Deadsnags of black spruce and jack pinewere still standing, althoughmost had fallen over and formed a leaningmix of dry, dead tree boles. The understory vegetation consisted mostly of black spruce saplings, saplings of the tree overstory species, bearberry, blueberry (Vaccinium myrtilloides Michx.), raspberry (Rubus idaeus L.), rose (Rosa acicularis Lindl.), bunchberry (Cornus canadensis L.), and reed grass (Calamagrostis canadensis (Michx.) Nutt.).« less

Associations of stream geomorphic conditions and prevalence of alternative reproductive tactics among sockeye salmon populations

USGS Publications Warehouse

DeFilippo, L. B.; Schindler, D.E.; Carter, J.L.; Walsworth, Timothy E.; Cline, T. J.; Larson, Wesley; Buehrens, T.

2018-01-01

In many species, males may exhibit alternative life histories to circumvent the costs of intrasexual competition and female courtship. While the evolution and underlying genetic and physiological mechanisms behind alternative reproductive tactics are well studied, there has been less consideration of the ecological factors that regulate their prevalence. Here, we examine six decades of age composition records from thirty‐six populations of sockeye salmon (Oncorhynchus nerka) to quantify associations between spawning habitat characteristics and the prevalence of precocious sneakers known as ‘jacks’. Jack prevalence was independent of neutral genetic structure among stream populations, but varied among habitat types and as a function of continuous geomorphic characteristics. Jacks were more common in streams relative to beaches and rivers, and their prevalence was negatively associated with stream width, depth, elevation, slope and area, but positively related to bank cover. Behavioural observations showed that jacks made greater use of banks, wood and shallows than guard males, indicating that their reproductive success depends on the availability of such refuges. Our results emphasize the role of the physical habitat in shaping reproductive tactic frequencies among populations, likely through local adaptation in response to variable fitness expectations under different geomorphic conditions.

Sneaker "jack" males outcompete dominant "hooknose" males under sperm competition in Chinook salmon (Oncorhynchus tshawytscha).

PubMed

Young, Brent; Conti, David V; Dean, Matthew D

2013-12-01

In a variety of taxa, males deploy alternative reproductive tactics to secure fertilizations. In many species, small "sneaker" males attempt to steal fertilizations while avoiding encounters with larger, more aggressive, dominant males. Sneaker males usually face a number of disadvantages, including reduced access to females and the higher likelihood that upon ejaculation, their sperm face competition from other males. Nevertheless, sneaker males represent an evolutionarily stable strategy under a wide range of conditions. Game theory suggests that sneaker males compensate for these disadvantages by investing disproportionately in spermatogenesis, by producing more sperm per unit body mass (the "fair raffle") and/or by producing higher quality sperm (the "loaded raffle"). Here, we test these models by competing sperm from sneaker "jack" males against sperm from dominant "hooknose" males in Chinook salmon. Using two complementary approaches, we reject the fair raffle in favor of the loaded raffle and estimate that jack males were ∼1.35 times as likely as hooknose males to fertilize eggs under controlled competitive conditions. Interestingly, the direction and magnitude of this skew in paternity shifted according to individual female egg donors, suggesting cryptic female choice could moderate the outcomes of sperm competition in this externally fertilizing species.

'Co-operation and Communism cannot work side by side': Organized Consumers and the Early Cold War in Britain.

PubMed

Gurney, Peter

2018-04-02

This article contributes to a better understanding of labour anti-communism in Britain through an exploration of the evolution of ideas and attitudes within the co-operative movement during the early Cold War. It demonstrates that the period witnessed an increasingly rigid separation of co-operation from communism and argues that this separation made it harder for activists within the co-operative movement to imagine a total or utopian alternative to capitalism. Drawing particularly on a close reading of the co-operative press as well as other sources, the study is divided into three main parts. The first section discusses sympathy among co-operators for the achievements of the Soviet Union, which increased during the war against fascism. The article then moves on to consider the continuing dialogue between British co-operators and their counterparts in European communist states and how international tensions shaped co-operators' views. The final major section explores the hardening of attitude towards communism after Marshall Aid was declared in June 1947, and underlines the role played by figures such as A. V. Alexander and Jack Bailey who worked with the Information Research Department at the Foreign Office to spread anti-communism within the movement. The conclusion reflects, more speculatively, on what implications this shift may have had for the medium and long-term decline of co-operation and the hegemony of capitalist consumerism post-war.

Topological characterization versus synchronization for assessing (or not) dynamical equivalence

NASA Astrophysics Data System (ADS)

Letellier, Christophe; Mangiarotti, Sylvain; Sendiña-Nadal, Irene; Rössler, Otto E.

2018-04-01

Model validation from experimental data is an important and not trivial topic which is too often reduced to a simple visual inspection of the state portrait spanned by the variables of the system. Synchronization was suggested as a possible technique for model validation. By means of a topological analysis, we revisited this concept with the help of an abstract chemical reaction system and data from two electrodissolution experiments conducted by Jack Hudson's group. The fact that it was possible to synchronize topologically different global models led us to conclude that synchronization is not a recommendable technique for model validation. A short historical preamble evokes Jack Hudson's early career in interaction with Otto E. Rössler.

Effects of a clear-cut harvest on soil respiration in a jack pine - Lichen woodland

USGS Publications Warehouse

Striegl, Robert G.; Wickland, K.P.

1998-01-01

Quantification of the components of ecosystem respiration is essential to understanding carbon (C) cycling of natural and disturbed landscapes. Soil respiration, which includes autotrophic and heterotrophic respiration from throughout the soil profile, is the second largest flux in the global carbon cycle. We measured soil respiration (soil CO2 emission) at an undisturbed mature jack pine (Pinus banksiana Lamb.) stand in Saskatchewan (old jack pine, OJP), and at a formerly continuous portion of the stand that was clear-cut during the previous winter (clear-cut, CC). Tree harvesting reduced soil CO2 emission from ???22.5 to ???9.1 mol CO2??m2 for the 1994 growing season. OJP was a small net sink of atmospheric CO2, while CC was a net source of CO2. Winter emissions were similar at both sites. Reduction of soil respiration was attributed to disruption of the soil surface and to the death of tree roots. Flux simulations for CC and OJP identify 40% of CO2 emission at the undisturbed OJP site as near-surface respiration, 25% as deep-soil respiration, and 35% as tree-root respiration. The near-surface component was larger than the estimated annual C input to soil, suggesting fast C turnover and no net C accumulation in these boreal uplands in 1994.

Tree species partition N uptake by soil depth in boreal forests.

PubMed

Houle, D; Moore, J D; Ouimet, R; Marty, C

2014-05-01

It is recognized that the coexistence of herbaceous species in N-depleted habitats can be facilitated by N partitioning; however, the existence of such a phenomenon for trees has not yet been demonstrated. Here, we show from both foliage and soil 15N natural abundance values and from a 12-year in situ 15N addition experiment, that black spruce (Picea mariana) and jack pine (Pinus banksiana), two widespread species of the Canadian boreal forest, take up N at different depths. While black spruce takes up N from the organic soil, jack pine acquires it deeper within the highly N-depleted mineral soil. Systematic difference in foliar 15N natural abundance between the two species across seven sites distributed throughout the eastern Canadian boreal forest shows that N spatial partitioning is a widespread phenomenon. Distinct relationships between delta15N and N concentration in leaves of both species further emphasize their difference in N acquisition strategies. This result suggests that such complementary mechanisms of N acquisition could facilitate tree species coexistence in such N-depleted habitats and could contribute to the positive biodiversity-productivity relationship recently revealed for the eastern Canadian boreal forest, where jack pine is present. It also has implications for forest management and provides new insights to interpret boreal forest regeneration following natural or anthropogenic perturbations.

Design, simulation and modelling of auxiliary exoskeleton to improve human gait cycle.

PubMed

Ashkani, O; Maleki, A; Jamshidi, N

2017-03-01

Exoskeleton is a walking assistance device that improves human gait cycle through providing auxiliary force and transferring physical load to the stronger muscles. This device takes the natural state of organ and follows its natural movement. Exoskeleton functions as an auxiliary device to help those with disabilities in hip and knee such as devotees, elderly farmers and agricultural machinery operators who suffer from knee complications. In this research, an exoskeleton designed with two screw jacks at knee and hip joints. To simulate extension and flexion movements of the leg joints, bearings were used at the end of hip and knee joints. The generated torque and motion angles of these joints obtained as well as the displacement curves of screw jacks in the gait cycle. Then, the human gait cycle was simulated in stance and swing phases and the obtained torque curves were compared. The results indicated that they followed the natural circle of the generated torque in joints with a little difference from each other. The maximum displacement obtained 4 and 6 cm in hip and knee joints jack respectively. The maximum torques in hip and knee joints were generated in foot contact phase. Also the minimum torques in hip and knee joints were generated in toe off and heel off phases respectively.

Jack-knife stretching promotes flexibility of tight hamstrings after 4 weeks: a pilot study.

PubMed

Sairyo, Koichi; Kawamura, Takeshi; Mase, Yasuyoshi; Hada, Yasushi; Sakai, Toshinori; Hasebe, Kiyotaka; Dezawa, Akira

2013-08-01

Tight hamstrings are reported to be one of the causes of low back pain. However, there have been few reports on effective stretching procedures for the tight hamstrings. The so-called jack-knife stretch, an active-static type of stretching, can efficiently increase the flexibility of tight hamstrings. To evaluate hamstring tightness before and after the 4-week stretching protocol in healthy volunteer adults and patients aged under 18 years with low back pain. For understanding the hamstrings tightness, we measured two parameters including (1) finger to floor distance (FFD) and (2) pelvis forward inclination angle (PFIA). Eight healthy adult volunteers who had no lumbar or hip problems participated in this study (mean age: 26.8 years). All lacked flexibility and their FFD were positive before the experiment. Subjects performed 2 sets of the jack-knife stretch every day for 4 weeks. One set consisted of 5 repetitions, each held for 5 s. Before and during the 4-week experiment, the FFD and PFIA of toe-touching tests were measured weekly. For 17 of the sports players aged under 18, only FFD was measured. In adult volunteers, FFD was 14.1 ± 6.1 cm before the experiment and decreased to -8.1 ± 3.7 cm by the end of week 4, indicating a gain in flexibility of 22.2 cm. PFIA was 50.6 ± 8.2 before the experiment and 83.8 ± 5.8 degrees after. Before and after the experiment, the differences were significant (p < 0.05). For those aged under 18, FFD was 8.1 ± 8.0 and -9.6 ± 6.8, before and after the stretching, respectively. This difference was significant (p < 0.05). The jack-knife stretch is a useful active-static stretching technique to efficiently increase flexibility of tight hamstrings.

Evaluation of species richness estimators based on quantitative performance measures and sensitivity to patchiness and sample grain size

NASA Astrophysics Data System (ADS)

Willie, Jacob; Petre, Charles-Albert; Tagg, Nikki; Lens, Luc

2012-11-01

Data from forest herbaceous plants in a site of known species richness in Cameroon were used to test the performance of rarefaction and eight species richness estimators (ACE, ICE, Chao1, Chao2, Jack1, Jack2, Bootstrap and MM). Bias, accuracy, precision and sensitivity to patchiness and sample grain size were the evaluation criteria. An evaluation of the effects of sampling effort and patchiness on diversity estimation is also provided. Stems were identified and counted in linear series of 1-m2 contiguous square plots distributed in six habitat types. Initially, 500 plots were sampled in each habitat type. The sampling process was monitored using rarefaction and a set of richness estimator curves. Curves from the first dataset suggested adequate sampling in riparian forest only. Additional plots ranging from 523 to 2143 were subsequently added in the undersampled habitats until most of the curves stabilized. Jack1 and ICE, the non-parametric richness estimators, performed better, being more accurate and less sensitive to patchiness and sample grain size, and significantly reducing biases that could not be detected by rarefaction and other estimators. This study confirms the usefulness of non-parametric incidence-based estimators, and recommends Jack1 or ICE alongside rarefaction while describing taxon richness and comparing results across areas sampled using similar or different grain sizes. As patchiness varied across habitat types, accurate estimations of diversity did not require the same number of plots. The number of samples needed to fully capture diversity is not necessarily the same across habitats, and can only be known when taxon sampling curves have indicated adequate sampling. Differences in observed species richness between habitats were generally due to differences in patchiness, except between two habitats where they resulted from differences in abundance. We suggest that communities should first be sampled thoroughly using appropriate taxon sampling curves before explaining differences in diversity.

Proterozoic events recorded in quartzite cobbles at Jack Hills, Western Australia: New constraints on sedimentation and source of > 4 Ga zircons

NASA Astrophysics Data System (ADS)

Grange, Marion L.; Wilde, Simon A.; Nemchin, Alexander A.; Pidgeon, Robert T.

2010-03-01

Rare heavy mineral bands within quartzite cobbles were identified in two conglomerate units within the Jack Hills belt, Western Australia. Seven zircon-bearing cobbles were analysed from one location (site 152) and three from another (site 154), both approximately 1 km west of the site where zircons in excess of 4 Ga are abundant (W74 'discovery' site). Individual pebbles from the 152 site reveal three distinctive features, containing either zircons > 3.0 Ga in age, < 1.9 Ga in age or a range of ages from ˜ 1.2 to ˜ 3.6 Ga. Those from site 154 are more uniform, containing only zircons with ages between 3.1 and 3.9 Ga. Only one grain > 4 Ga was discovered from the entire suite of pebbles, in contrast to the well-studied W74 site. A single detrital zircon with an age of 1220 ± 42 Ma from location 152 is the youngest grain so far reported from sedimentary rocks at Jack Hills. It shows magmatic oscillatory zoning and thus implies at least two sedimentary cycles within the Proterozoic; requiring erosion of an igneous precursor, incorporation into a clastic sediment, induration and subsequent erosion and transport to be hosted in the conglomerate. The nearest source for rocks of this age is the Bangemall Supergroup in the Collier Basin, ˜ 100 km northeast in the Capricorn Orogen. This would imply tectonic interleaving of originally more extensive Bangemall rocks, possibly related to activity along the Cargarah Shear Zone that traverses the Jack Hills belt. The lack of > 4.1 Ga zircons in the pebbles is highly significant, suggesting the immediate source of ancient zircons was no longer present at the Earth's surface. This equates with a general lack of ancient crystals noted in rocks that contain Proterozoic zircons from previous studies and implies that such grains diminish in number as earlier sedimentary rocks were successively recycled.

The provenance of Archean clastic metasediments in the Narryer Gneiss Complex, Western Australia: Trace element geochemistry, Nd isotopes, and U-Pb ages for detrital zircons

NASA Astrophysics Data System (ADS)

Maas, Roland; McCulloch, Malcolm T.

1991-07-01

Clastic metasedimentary rocks of mid-Archean age from the Mt. Narryer and Jack Hills metasedimentary belts have REE patterns resembling those of mid- to late-Archean pelitic-quartzitic cratonic sequences elsewhere, and post-Archean continental rocks in general. Detrital zircons in the metasediments range in age from ca. 3000 to 3700 Ma. This indicates a provenance from mature cratonic sources controlled by K-rich granitic rocks. Additional minor sediment sources were identified as older, mainly chemical sedimentary sequences, ultramafic rocks, and felsic rocks characterized by low HREE contents, perhaps of tonalitic affinity. The association of the near-shore/fluviatile clastic association studied here with extensive turbiditic and chemical sedimentary sequences indicates these sources formed part of a (rifted ?) cratonic margin ca. 3 Ga ago. Differences between sedimentary REE patterns and those in the surrounding 3.73-3.0 Ga orthogneiss terrain, and between detrital zircon ages and the age distribution in the gneisses, suggest that the present association of the metasedimentary belts with the orthogneiss terrain is of tectonic origin. The occurrence of detrital zircons with U-Pb ages > 4 Ga in certain quartzites and conglomerates of the Jack Hills and Mt. Narryer metasedimentary sequences indicates a further, most likely granitic, source. ɛNd( TDep) values in Jack Hills metasediments vary widely (+5 to -12) but have a smaller range in the Mt. Narryer belt (-5 to -9). The lowest ɛNd values of both sequences are interpreted to reflect the presence of detritus derived from 4.1-4.2 Ga old LREE-enriched continental crust in proportions considerably larger (≥ 10%) than estimated previously from the abundance of pre-4 Ga detrital zircons (≈3%). This would imply the former existence of significant volumes of pre-4 Ga continental crust in the provenance of the Mt. Narryer and Jack Hills metasediments.

Patterns of Cross-Continental Variation in Tree Seed Mass in the Canadian Boreal Forest

PubMed Central

Liu, Jushan; Bai, Yuguang; Lamb, Eric G.; Simpson, Dale; Liu, Guofang; Wei, Yongsheng; Wang, Deli; McKenney, Daniel W.; Papadopol, Pia

2013-01-01

Seed mass is an adaptive trait affecting species distribution, population dynamics and community structure. In widely distributed species, variation in seed mass may reflect both genetic adaptation to local environments and adaptive phenotypic plasticity. Acknowledging the difficulty in separating these two aspects, we examined the causal relationships determining seed mass variation to better understand adaptability and/or plasticity of selected tree species to spatial/climatic variation. A total of 504, 481 and 454 seed collections of black spruce (Picea mariana (Mill.) B.S.P.), white spruce (Picea glauca (Moench) Voss) and jack pine (Pinus banksiana Lamb) across the Canadian Boreal Forest, respectively, were selected. Correlation analyses were used to determine how seed mass vary with latitude, longitude, and altitude. Structural Equation Modeling was used to examine how geographic and climatic variables influence seed mass. Climatic factors explained a large portion of the variation in seed mass (34, 14 and 29%, for black spruce, white spruce and jack pine, respectively), indicating species-specific adaptation to long term climate conditions. Higher annual mean temperature and winter precipitation caused greater seed mass in black spruce, but annual precipitation was the controlling factor for white spruce. The combination of factors such as growing season temperature and evapotranspiration, temperature seasonality and annual precipitation together determined seed mass of jack pine. Overall, sites with higher winter temperatures were correlated with larger seeds. Thus, long-term climatic conditions, at least in part, determined spatial variation in seed mass. Black spruce and Jack pine, species with relatively more specific habitat requirements and less plasticity, had more variation in seed mass explained by climate than did the more plastic species white spruce. As traits such as seed mass are related to seedling growth and survival, they potentially influence forest species composition in a changing climate and should be included in future modeling of vegetation shifts. PMID:23593392

Human Factors Virtual Analysis Techniques for NASA's Space Launch System Ground Support using MSFC's Virtual Environments Lab (VEL)

NASA Technical Reports Server (NTRS)

Searcy, Brittani

2017-01-01

Using virtual environments to assess complex large scale human tasks provides timely and cost effective results to evaluate designs and to reduce operational risks during assembly and integration of the Space Launch System (SLS). NASA's Marshall Space Flight Center (MSFC) uses a suite of tools to conduct integrated virtual analysis during the design phase of the SLS Program. Siemens Jack is a simulation tool that allows engineers to analyze human interaction with CAD designs by placing a digital human model into the environment to test different scenarios and assess the design's compliance to human factors requirements. Engineers at MSFC are using Jack in conjunction with motion capture and virtual reality systems in MSFC's Virtual Environments Lab (VEL). The VEL provides additional capability beyond standalone Jack to record and analyze a person performing a planned task to assemble the SLS at Kennedy Space Center (KSC). The VEL integrates Vicon Blade motion capture system, Siemens Jack, Oculus Rift, and other virtual tools to perform human factors assessments. By using motion capture and virtual reality, a more accurate breakdown and understanding of how an operator will perform a task can be gained. By virtual analysis, engineers are able to determine if a specific task is capable of being safely performed by both a 5% (approx. 5ft) female and a 95% (approx. 6'1) male. In addition, the analysis will help identify any tools or other accommodations that may to help complete the task. These assessments are critical for the safety of ground support engineers and keeping launch operations on schedule. Motion capture allows engineers to save and examine human movements on a frame by frame basis, while virtual reality gives the actor (person performing a task in the VEL) an immersive view of the task environment. This presentation will discuss the need of human factors for SLS and the benefits of analyzing tasks in NASA MSFC's VEL.

Was Jack the Ripper a Slaughterman? Human-Animal Violence and the World’s Most Infamous Serial Killer

PubMed Central

Knight, Andrew; Watson, Katherine D.

2017-01-01

Simple Summary The identity of Jack the Ripper remains one of the greatest unsolved crime mysteries in history. Jack was notorious both for the brutality of his murders and also for his habit of stealing organs from his victims. His speed and skill in doing so, in conditions of poor light and haste, fueled theories he was a surgeon. However, re-examination of a mortuary sketch from one of his victims has revealed several key aspects that strongly suggest he had no professional surgical training. Instead, the technique used was more consistent with that of a slaughterhouse worker. There were many small-scale slaughterhouses in East London in the 1880s, within which conditions were harsh for animals and workers alike. The brutalizing effects of such work only add to concerns highlighted by modern research that those who commit violence on animals are more likely to target people. Modern slaughterhouses are more humane in some ways but more desensitizing in others, and sociological research has indicated that communities with slaughterhouses are more likely to experience the most violent of crimes. The implications for modern animal slaughtering, and our social reliance on slaughterhouses, are explored. Abstract Hundreds of theories exist concerning the identity of “Jack the Ripper”. His propensity for anatomical dissection with a knife—and in particular the rapid location and removal of specific organs—led some to speculate that he must have been surgically trained. However, re-examination of a mortuary sketch of one of his victims has revealed several aspects of incisional technique highly inconsistent with professional surgical training. Related discrepancies are also apparent in the language used within the only letter from Jack considered to be probably authentic. The techniques he used to dispatch his victims and retrieve their organs were, however, highly consistent with techniques used within the slaughterhouses of the day. East London in the 1880s had a large number of small-scale slaughterhouses, within which conditions for both animals and workers were exceedingly harsh. Modern sociological research has highlighted the clear links between the infliction of violence on animals and that inflicted on humans, as well as increased risks of violent crimes in communities surrounding slaughterhouses. Conditions within modern slaughterhouses are more humane in some ways but more desensitising in others. The implications for modern animal slaughtering, and our social reliance on slaughterhouses, are explored. PMID:28394281

Automated detection and mapping of crown discolouration caused by jack pine budworm with 2.5 m resolution multispectral imagery

NASA Astrophysics Data System (ADS)

Leckie, Donald G.; Cloney, Ed; Joyce, Steve P.

2005-05-01

Jack pine budworm ( Choristoneura pinus pinus (Free.)) is a native insect defoliator of mainly jack pine ( Pinus banksiana Lamb.) in North America east of the Rocky Mountains. Periodic outbreaks of this insect, which generally last two to three years, can cause growth loss and mortality and have an important impact ecologically and economically in terms of timber production and harvest. The jack pine budworm prefers to feed on current year needles. Their characteristic feeding habits cause discolouration or reddening of the canopy. This red colouration is used to map the distribution and intensity of defoliation that has taken place that year (current defoliation). An accurate and consistent map of the distribution and intensity of budworm defoliation (as represented by the red discolouration) at the stand and within stand level is desirable. Automated classification of multispectral imagery, such as is available from airborne and new high resolution satellite systems, was explored as a viable tool for objectively classifying current discolouration. Airborne multispectral imagery was acquired at a 2.5 m resolution with the Multispectral Electro-optical Imaging Sensor (MEIS). It recorded imagery in six nadir looking spectral bands specifically designed to detect discolouration caused by budworm and a near-infrared band viewing forward at 35° was also used. A 2200 nm middle infrared image was acquired with a Daedalus scanner. Training and test areas of different levels of discolouration were created based on field observations and a maximum likelihood supervized classification was used to estimate four classes of discolouration (nil-trace, light, moderate and severe). Good discrimination was achieved with an overall accuracy of 84% for the four discolouration levels. The moderate discolouration class was the poorest at 73%, because of confusion with both the severe and light classes. Accuracy on a stand basis was also good, and regional and within stand discolouration patterns were portrayed well. Only three or four well-placed spectral bands were needed for a good classification. A narrow red band, a near-infrared and short wave infrared band were most useful. A forward looking band did not improve discolouration estimation, but further testing is needed to confirm this result. This method of detecting and classifying discolouration appears to provide a mapping capability useful for conducting jack pine budworm discolouration surveys and integrating this information into decision support systems, forest inventory, growth and yield predictions and the forest management decision-making process.

Obituary: John P. Davidson (1924-2010)

NASA Astrophysics Data System (ADS)

Twarog, Bruce; Anthony-Twarog, Barbara

2011-12-01

Nuclear physicist and astrophysicist John P. Davidson died at his home on January 10, 2010. He was born on July 22, 1924 in Los Angeles, California. Jack followed his high school interests in rocketry and physical science to the University of California, Berkeley, where he earned a Bachelor of Science degree in physics in June 1948 after serving a stint from 1943 to 1946 in the Army Signal Corps in the European Theater of Operations. Following the war and graduation, Jack embarked on a graduate career in nuclear physics at Washington University, St. Louis. While there, he also initiated what became a life-long partnership with Mary Reiser dedicated to issues of social justice by co-founding an organization to lobby for university admission of African-American students, a policy change opposed by physicist and Chancellor, Arthur Holly Compton. Mary and Jack married in 1949. Jack Davidson's academic career began shortly after completion of his PhD in 1952 under Eugene Feenberg. He taught in Brazil and in Norway before becoming an assistant professor at Rensselaer Polytechnic Institute in 1957. He stayed at RPI until 1966, at which time he joined the faculty of the University of Kansas where he served faculty and students until his retirement in 1996. His teaching, research and administrative career at KU was distinguished by a growing commitment to the astronomy and astrophysics program. Not only did he foster its growth during his tenure as department chair (1977-1989), he directed a residential summer science program in astronomy for high school students at KU for nearly 10 years in the 1970's. He combined his background in nuclear physics and his fascination with astrophysics into a research program to study elemental abundance anomalies in stellar spectra, authoring with Don Bord several pioneering applications of wavelength coincidence statistics to the ultraviolet spectra of peculiar A stars. At KU, Jack assumed leadership roles in the local chapter of Phi Beta Kappa and served as director of a DOE sponsored research competition for high school students: the Junior Science and Humanities Symposium. His commitment to public education issues and science literacy led him to seek election to the Kansas Board of Education and then gain election as a member of the Lawrence, Kansas school board from 1999 to 2003, a turbulent period for science education within the state of Kansas. He will be fondly remembered and missed by the numerous students he advised and taught, as well as the several astronomers whose careers he fostered at the University of Kansas.

Water quality in the Ozark National Scenic Riverways, Missouri

USGS Publications Warehouse

Barks, James H.

1978-01-01

The Current River and its principal tributary, Jacks Fork, are the Ozark National Scenic Riverway's primary natural features. About 60 percent of the baseflow in the two streams is derived from the seven largest springs in the basin. The springs are supplied by diffuse contributions from the regional aquifer system and discrete inflows from sinkholes and losing streams, some of which are outside the Current River basin. Because the streams and springs are the primary attractions to the park, preservation of the physical, chemical, and biological quality and aesthetic appeal of the waters is important. From April 1973 to May 1975, water samples were collected from 19 wells, 7 large springs, 14 sites on the Current River, 7 sites on the Jacks Fork, and 5 tributaries to the Current River and Jacks Fork. Calcium, magnesium, and bicarbonate composed more than 90 percent of the total ionic composition of dissolved material in springs and streams and more than 95 percent in ground water, reflecting the dolomitic composition of the rocks. Dissolved-solids concentrations averaged 276 mg/L (milligrams per liter) in ground water and less than 200 mg/L in springs and streams. Total nitrate concentrations as N averaged 0.22 mg/L in ground water, 0.42 mg/L in springs, and less than 0.65 mg/L in streams. Minor element concentrations were generally low, but on one occasion anomalously high concentrations of total barium, lead, silver, and zinc were found in Blue Spring and the four stream-index stations. The only pesticides detected were 0.03 ?g/L (micrograms per liter) of 2,4-D, and 0.03 ?g/L of 2,4,5-T, and these were in the Current River below Montauk State Park during storm runoff. The streams were relatively free of sediment, except during periods of storm runoff. Fecal coliform and fecal streptococcus densities as high as 2,000 and 2,100 col/100 ml (colonies per 100 milliliters), respectively, were measured in the Jacks Fork downstream from horseback riding activities. Fecal coliform and fecal streptococcus densities of about 4,000 and 22,000 co11100 ml, respectively, were measured in the Current River during storm runoff. Otherwise, bacteria densities averaged less than 100 col/100 ml for fecal coliforms and 200 col/100 ml for fecal streptococci and appear to be relatively unaffected by swimming, camping, canoeing, and other recreational activities in and along streams. The aquatic biota in the Current River and Jacks Fork indicate that the streams generally are unaffected by pollution.

Site- and bond-percolation thresholds in K_{n,n}-based lattices: Vulnerability of quantum annealers to random qubit and coupler failures on chimera topologies.

PubMed

Melchert, O; Katzgraber, Helmut G; Novotny, M A

2016-04-01

We estimate the critical thresholds of bond and site percolation on nonplanar, effectively two-dimensional graphs with chimeralike topology. The building blocks of these graphs are complete and symmetric bipartite subgraphs of size 2n, referred to as K_{n,n} graphs. For the numerical simulations we use an efficient union-find-based algorithm and employ a finite-size scaling analysis to obtain the critical properties for both bond and site percolation. We report the respective percolation thresholds for different sizes of the bipartite subgraph and verify that the associated universality class is that of standard two-dimensional percolation. For the canonical chimera graph used in the D-Wave Systems Inc. quantum annealer (n=4), we discuss device failure in terms of network vulnerability, i.e., we determine the critical fraction of qubits and couplers that can be absent due to random failures prior to losing large-scale connectivity throughout the device.

Multi-gene phylogeny of jacks and pompanos (Carangidae), including placement of monotypic vadigo Campogramma glaycos.

PubMed

Damerau, M; Freese, M; Hanel, R

2018-01-01

In this study, the phylogenetic trees of jacks and pompanos (Carangidae), an ecologically and morphologically diverse, globally distributed fish family, are inferred from a complete, concatenated data set of two mitochondrial (cytochrome c oxidase I, cytochrome b) loci and one nuclear (myosin heavy chain 6) locus. Maximum likelihood and Bayesian inferences are largely congruent and show a clear separation of Carangidae into the four subfamilies: Scomberoidinae, Trachinotinae, Naucratinae and Caranginae. The inclusion of the carangid sister lineages Coryphaenidae (dolphinfishes) and Rachycentridae (cobia), however, render Carangidae paraphyletic. The phylogenetic trees also show with high statistical support that the monotypic vadigo Campogramma glaycos is the sister to all other species within the Naucratinae. © 2017 The Fisheries Society of the British Isles.

X-ray absorption spectroscopic evidence for binding of the competitive inhibitor 2-mercaptoethanol to the nickel sites of Jack bean urease. A new Ni-Ni interaction in the inhibited enzyme

DOE Office of Scientific and Technical Information (OSTI.GOV)

Clark, P.A.; Wilcox, D.E.; Scott, R.A.

The enzyme Jack bean urease has been identified as the first nickel-containing metalloenzyme to catalyze the hydrolysis of urea to carbon dioxide and ammonia. Competitive inhibitors such as 2-mercaptoethanol (2-ME) have been shown to dramatically affect the ground-state electronic properties of the urease Ni(II) ions. Results of preliminary structural investigations using x-ray absorption spectroscopy of the nickel salts of urease in its native and 2-ME bound forms are presented. The binding of 2-ME to Ni(II) through the thiolate sulfur is confirmed by the results of this study. 17 refs., 2 figs., 2 tabs.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Childers, M.; Barnes, J.

The phased field development of the Lion and Panthere fields, offshore the Ivory Coast, includes a small floating production, storage, and offloading (FPSO) tanker with minimal processing capability as an early oil production system (EPS). For the long-term production scheme, the FPSO will be replaced by a converted jack up mobile offshore production system (MOPS) with full process equipment. The development also includes guyed-caisson well platforms, pipeline export for natural gas to fuel an onshore power plant, and a floating storage and offloading (FSO) tanker for oil export. Pipeline export for oil is a future possibility. This array of innovativemore » strategies and techniques seldom has been brought together in a single project. The paper describes the development plan, early oil, jack up MOPS, and transport and installation.« less

JACK CREEK BASIN, MONTANA.

USGS Publications Warehouse

Kiilsgaard, Thor H.; Van Noy, Ronald M.

1984-01-01

A mineral survey of the Jack Creek basin area in Montana revealed that phosphate rock underlies the basin. The phosphate rock is in thin beds that dip steeply and are broken and offset by faults. These features plus the rugged topography of the region would make mining difficult; however, this study finds the area to have a probable mineral-resource potential for phosphate. Sedimentary rock formations favorable for oil and gas also underlie the basin. No oil or gas has been produced from the basin or from nearby areas in southwestern Montana, but oil and gas have been produced from the same favorable formations elsewhere in Montana. The possibility of oil and gas being produced from the basin is slight but it cannot be ignored.

Jack D. Fellows: Congressional Science Fellow

NASA Astrophysics Data System (ADS)

Jack D. Fellows has been selected as the 1983-84 AGU Congressional Science Fellow. Last week he began his 1-year stint on Capitol Hill as AGU's seventh Congressional Science Fellow.Fellows received his Ph.D. earlier this year from the civil engineering department at the University of Maryland, College Park. For his dissertation he developed a management system using regional geographic information for hydrologic models. His work applied remote sensing data to the decision-making processes of regional planning organizations concerned with hydrology and natural resource management. The Maryland National Capital Park and Planning Commission has integrated Fellows' work into their programs on water resource and environmental planning; his approach also is being used for forest and water resource planning near Freiburg, Baden-Wurtemberg, West Germany.

Nuclear reactor internals alignment configuration

DOEpatents

Gilmore, Charles B [Greensburg, PA; Singleton, Norman R [Murrysville, PA

2009-11-10

An alignment system that employs jacking block assemblies and alignment posts around the periphery of the top plate of a nuclear reactor lower internals core shroud to align an upper core plate with the lower internals and the core shroud with the core barrel. The distal ends of the alignment posts are chamfered and are closely received within notches machined in the upper core plate at spaced locations around the outer circumference of the upper core plate. The jacking block assemblies are used to center the core shroud in the core barrel and the alignment posts assure the proper orientation of the upper core plate. The alignment posts may alternately be formed in the upper core plate and the notches may be formed in top plate.

76 FR 66891 - Committee on Rulemaking

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-28

...;and investigations, committee meetings, agency decisions and rulings, #0;delegations of authority... Professor Jack Beermann is the consultant, and the Regulatory Analysis Project, for which Curtis Copeland is...

Myokymia and neuromyotonia in veterinary medicine: a comparison with peripheral nerve hyperexcitability syndrome in humans.

PubMed

Vanhaesebrouck, An E; Bhatti, Sofie F M; Franklin, Robin J M; Van Ham, Luc

2013-08-01

Involuntary muscle hyperactivity can result from muscle or peripheral nerve hyperexcitability or central nervous system dysfunction. In humans, diseases causing hyperexcitability of peripheral nerves are grouped together under the term 'peripheral nerve hyperexcitability' (PNH). Hyperexcitability of the peripheral motor nerve can result into five different phenotypic main variants, i.e. fasciculations, myokymia, neuromyotonia, cramps and tetany, each with their own clinical and electromyographic characteristics. This review focuses on the most commonly described expressions of PNH in veterinary medicine, i.e. myokymia and neuromyotonia, in particular in young Jack Russell terriers. Data from 58 veterinary cases with generalized myokymia and neuromyotonia were analyzed, including unpublished treatment and follow-up data on eight Jack Russell terriers from a previous study and seven additional Jack Russell terriers. A dysfunction of the potassium channel or its associated proteins has been found in many human syndromes characterized by PNH, in particular in generalized myokymia and neuromyotonia, and is suspected to occur in veterinary medicine. Potential pathomechanisms of potassium channel dysfunction leading to signs of PNH are broad and include genetic mutations, antibody-mediated attack or ion channel maldistribution due to axonal degeneration or demyelination. A more accurate classification of the different PNH syndromes will facilitate a more rapid diagnosis and guide further research into natural occurring PNH in animals. Copyright © 2013 Elsevier Ltd. All rights reserved.

Low heat flow inferred from >4 Gyr zircons suggests Hadean plate boundary interactions.

PubMed

Hopkins, Michelle; Harrison, T Mark; Manning, Craig E

2008-11-27

The first approximately 600 million years of Earth history (the 'Hadean' eon) remain poorly understood, largely because there is no rock record dating from that era. Detrital Hadean igneous zircons from the Jack Hills, Western Australia, however, can potentially provide insights into the conditions extant on our planet at that time. Results of geochemical investigations using these ancient grains have been interpreted to suggest the presence of a hydrosphere and continental crust before 4 Gyr. An underexploited characteristic of the >4 Gyr zircons is their diverse assemblage of mineral inclusions. Here we present an examination of over 400 Hadean zircons from Jack Hills, which shows that some inclusion assemblages are conducive to thermobarometry. Our thermobarometric analyses of 4.02-4.19-Gyr-old inclusion-bearing zircons constrain their magmatic formation conditions to about 700 degrees C and 7 kbar. This result implies a near-surface heat flow of approximately 75 mW m(-2), about three to five times lower than estimates of Hadean global heat flow. As the only site of magmatism on modern Earth that is characterized by heat flow of about one-quarter of the global average is above subduction zones, we suggest that the magmas from which the Jack Hills Hadean zircons crystallized were formed largely in an underthrust environment, perhaps similar to modern convergent margins.

BOREAS TGB-6 Soil Methane Oxidation and Production from NSA BP and Fen Sites

NASA Technical Reports Server (NTRS)

Deck, Bruce; Wahlen, Martin; Hall, Forrest G. (Editor); Conrad, Sara K. (Editor)

2000-01-01

The BOReal Ecosystem-Atmosphere Study Trace Gas Biogeochemistry (BOREAS TGB-6) team collected soil methane measurements at several sites in the Southern Study Area (SSA) and Northern Study Area (NSA). This data set contains soil methane consumption (bacterial CH4 oxidation) and associated C-13 fractionation effects in samples that were collected at various sites in 1994 and 1996 from enclosures (chambers). Methane C-13 data in soil gas samples from the NSA Young Jack Pine (YJP) and Old Jack Pine (OJP) sites for 1994 and 1996 are also given. Additional data on the isotopic composition of methane (carbon and hydrogen isotopes) produced in the NSA beaver ponds and fen bog in 1993 and 1994 are given as well. The data are stored in tabular ASCII files.

KENNEDY SPACE CENTER, FLA. - In the Columbia Debris Hangar, Jack Nowling transfers bags with debris pieces into a storage box. About 83,000 pieces of debris were shipped to KSC during search and recovery efforts in East Texas. That represents about 38 percent of the dry weight of Columbia, equaling almost 85,000 pounds. An area of the Vehicle Assembly Building is being prepared to store the debris.

NASA Image and Video Library

2003-09-10

KENNEDY SPACE CENTER, FLA. - In the Columbia Debris Hangar, Jack Nowling transfers bags with debris pieces into a storage box. About 83,000 pieces of debris were shipped to KSC during search and recovery efforts in East Texas. That represents about 38 percent of the dry weight of Columbia, equaling almost 85,000 pounds. An area of the Vehicle Assembly Building is being prepared to store the debris.

Anti-inflammatory effect of ethanolic extract of spine, skin and rind of Jack fruit peel - A comparative study.

PubMed

Meera, M; Ruckmani, A; Saravanan, R; Lakshmipathy Prabhu, R

2017-10-09

The present study was conducted to identify the chemical constituents and evaluate the anti-inflammatory activity of crude ethanolic extracts of spine, skin and rind of jack fruit (Artocarpus heterophyllus) peel. Polyphenol and flavonoid contents were assessed using Folin's Ciocalteu reagent and aluminium chloride methods which revealed 316, 355 and 382 mg tannic acid equivalent/g of polyphenol and 96.7, 131.6 and 164.6 mg quercetin equivalent/g of flavonoid in spine, skin and rind, respectively. Anti-inflammatory activity of all three extracts was comparable to diclofenac in vitro and in vivo studies. Skin exhibited maximum anti-inflammatory activity, rind had preferential inhibition on Cyclooxygenase-2 and spine and skin inhibited both Cyclooxygenase-1 and 2 in vitro.

Moss and lichen cover mapping at local and regional scales in the boreal forest ecosystem of central Canada

USGS Publications Warehouse

Rapalee, G.; Steyaert, L.T.; Hall, F.G.

2001-01-01

Mosses and lichens are important components of boreal landscapes [Vitt et al., 1994; Bubier et al., 1997]. They affect plant productivity and belowground carbon sequestration and alter the surface runoff and energy balance. We report the use of multiresolution satellite data to map moss and lichens over the BOREAS region at a 10 m, 30 m, and 1 km scales. Our moss and lichen classification at the 10 m scale is based on ground observations of associations among soil drainage classes, overstory composition, and cover type among four broad classes of ground cover (feather, sphagnum, and brown mosses and lichens). For our 30 m map, we used field observations of ground cover-overstory associations to map mosses and lichens in the BOREAS southern study area (SSA). To scale up to a 1 km (AVHRR) moss map of the BOREAS region, we used the TM SSA mosaics plus regional field data to identify AVHRR overstory-ground cover associations. We found that: 1) ground cover, overstory composition and density are highly correlated, permitting inference of moss and lichen cover from satellite-based land cover classifications; 2) our 1 km moss map reveals that mosses dominate the boreal landscape of central Canada, thereby a significant factor for water, energy, and carbon modeling; 3) TM and AVHRR moss cover maps are comparable; 4) satellite data resolution is important; particularly in detecting the smaller wetland features, lakes, and upland jack pine sites; and 5) distinct regional patterns of moss and lichen cover correspond to latitudinal and elevational gradients. Copyright 2001 by the American Geophysical Union.

75 FR 17083 - Fiduciary Duties at Federal Credit Unions; Mergers and Conversions of Insured Credit Unions...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-05

... Credit Unions; Mergers and Conversions of Insured Credit Unions; Correction AGENCY: National Credit Union... Federal credit unions and mergers and conversions of insured credit unions. The proposed rule as published... Conversions of Insured Credit Unions) in the e-mail subject line.'' [[Page 17084

Metamorphic and structural evidence for significant vertical displacement along the Ross Lake fault zone, a major orogen-parallel shear zone in the Cordillera of western North America

USGS Publications Warehouse

Baldwin, J.A.; Whitney, D.L.; Hurlow, H.A.

1997-01-01

Results of an investigation of the petrology and structure of the Skymo complex and adjacent terranes constrain the amount, timing, and sense of motion on a segment of the > 600-km-long Late Cretaceous - early Tertiary Ross Lake fault zone (RLFZ), a major orogen-parallel shear zone in the Cordillera of western North America. In the study area in the North Cascades, Washington state, the RLFZ accommodated significant pre-middle Eocene vertical displacement, and it juxtaposes the Skymo complex with upper amphibolite facies (650??-690??C and 6-7 kbar) Skagit Gneiss of the North Cascades crystalline core to the SW and andalusite-bearing phyllite of the Little Jack terrane (Intermontane superterrane) to the NE. The two main lithologic units of the Skymo complex, a primitive mafic intrusion and a fault-bounded block of granulite facies metasedimentary rocks, are unique in the North Cascades. Granulite facies conditions were attained during high-temperature (> 800??C), low pressure (??? 4 kbar) contact metamorphism associated with intrusion of the mafic magma. P-T estimates and reaction textures in garnet-orthopyroxene gneiss suggest that contact metamorphism followed earlier, higher pressure regional metamorphism. There is no evidence that the Skagit Gneiss experienced high-T - low-P contact metamorphism. In the Little Jack terrane, however, texturally late cordierite ?? spinel and partial replacement of andalusite by sillimanite near the terrane's fault contact with Skymo gabbro suggest that the Little Jack terrane experienced high-T (??? 600??C) - low-P (??? 4 kbar) contact metamorphism following earlier low-grade regional metamorphism. Similarities in the protoliths of metasedimentary rocks in the Skymo and Little Jack indicate that they may be part of the same terrane. Differences in pressure estimates for the Little Jack versus Skymo for regional metamorphism that preceded contact metamorphism indicate vertical displacement of ??? 10 km (west side up) on the strand of the RLFZ that now separates the two structural blocks. High-angle faults in the study area are dextral-reverse mylonitic shear zones that experienced later brittle normal slip. Vertical motion on these shear zones before intrusion of Skymo gabbro can account for metamorphic discontinuities indicated by P-T results. The terranes have also been internally deformed by nonintersecting but coeval dextral and sinistral shear zones that formed after the terranes were brought together in the RLFZ and intruded by Eocene dikes. These results show that the RLFZ has accommodated significant vertical displacement but perhaps no more than tens of kilometers of early Tertiary lateral movement. Structural evidence for earlier, large-magnitude strike-slip displacement is not preserved.

77 FR 42735 - Appointments to the Medicare Payment Advisory Commission

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-20

..., South Shore Hospital; Jack Hoadley, Ph.D., Research Professor, Health Policy Institute, Georgetown... Ford Health System; Rita Redberg, MD, Professor, Clinical Medicine, University of California at San...

47 CFR 74.1250 - Transmitters and associated equipment.

Code of Federal Regulations, 2012 CFR

2012-10-01

... EXPERIMENTAL RADIO, AUXILIARY, SPECIAL BROADCAST AND OTHER PROGRAM DISTRIBUTIONAL SERVICES FM Broadcast... designed to operate. The apparatus shall be equipped with suitable meters or meter jacks so that the...

ARC-2008-ACD08-0260-036

NASA Image and Video Library

2008-11-06

K-10 (red) robot operations tests at Marscape (Ames Mars Yard) with remote operations from Ames Future Flight Centeral (FFC) Simulator, with Melissa Rice and Harrison 'Jack' Schmitt (Apollo 17 Astronaut)

Statewide Publc Facilities section, Alaska Department of Transportation &

Science.gov Websites

&PF> Statewide Public Facilities Welcome to the Statewide Public Facilities Jack Hernandez Sport Fish Hatchery Anchorage Sport Fish Hatchery Statewide Public Facilities provides project management

Mars Reconnaissance Orbiter Taking Shape

NASA Image and Video Library

2004-08-09

Lockheed Martin Space Systems engineer Terry Kampmann left and lead technician Jack Farmerie work on assembly and test of NASA Mars Reconnaissance Orbiter spacecraft bus in a cleanroom at the company Denver facility.

Jack-in-the-pulpit poisoning

MedlinePlus

... if known Time it was swallowed Amount swallowed Poison Control Your local poison center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere ...

BOREAS TE-9 In Situ Understory Spectral Reflectance Within the NSA

NASA Technical Reports Server (NTRS)

Hall, Forrest G. (Editor); Curd, Shelaine (Editor); Supronowicz, Jan; Edwards, Geoffrey; Viau, Alain; Thomson, Keith

2000-01-01

The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-9 (Terrestrial Ecology) team collected several data sets related to chemical and photosynthetic properties of leaves in boreal forest tree species. Spectral reflection coefficients of the forest understory at the ground level, in three boreal forest sites of Northern Manitoba (56 N latitude and 98 W longitude), were obtained and analyzed in 1994. In particular, angular variation of the reflection coefficients in the old jack pine and young jack pine forests, as well as nadir reflection coefficient in the young aspen forest, were investigated. The complexity of understory composition and the light patterns limited quantitative conclusions; however, a number of interesting trends in the behavior of the measured values can be inferred. In particular, the unique spectral profiles of lichens show very strongly in the old jack pine understory, yet are definitely less conspicuous for young jack pine, and virtually absent in the aspen forest. The angular variation of the reflection coefficient by the young pine understory seems to be significantly toned down by fine-structured branches and their shadows. Our study also indicates how difficult the ground reflection coefficient problem in a forest is, compared to certain previously investigated areas that have a more uniform appearance, such as prairie grassland, bare soil, or agricultural crops. This is due to several factors, generally typical of a forest environment, that may influence the overall understory reflection coefficient, including: (1) a strong diversity of the forest floor due to the presence of dead tree trunks, holes in the ground, patches of different types of vegetation or litter, etc.; (2) pronounced 3-D structures at the ground level, such as shrubs, bushes, and young trees; and (3) an irregular shadow mosaic, which not only varies with the time of the day, causing intensity variations, but likely also effectively modifies the spectrum of the illuminating light and hence the reflection coefficient signal as well The data are stored in tabular ASCII files. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

Ecological Responses to Five Years of Experimental Nitrogen Application in an Upland Jack-pine Stand

NASA Astrophysics Data System (ADS)

Melaschenko, N.; Berryman, S.; Straker, J.; Berg, K.; McDonough, A.; Watmough, S. A.

2016-12-01

A five-year experimental study was conducted to evaluate the response of an upland jack-pine (Pinus banksiana) forest to elevated levels of nitrogen (N) deposition in Northern Alberta. N deposition in the region is expected to increase with industrial expansion of oil sands activity, and there is regional interest to set N critical loads for sensitive ecosystems. In this study, N was applied as NH4NO3 above a jack-pine canopy via helicopter, annually for five years (2010-2015) at dosages equivalent to 5, 10, 15, 20 and 25 kg N ha-1 yr-1. Approximately 35% of the applied N was retained in the canopy while 65% reached understory vegetation dominated by lichens and mosses. We measured a significant increase in tissue N concentrations of common ground lichens (Cladonia mitis and C. stellaris) and ground moss (Pleurozium schreberi) as well as epiphytic lichens (Hypogymnia physodes and Evernia mesomorpha). On an annual basis, the applied N was primarily captured in the lichen and moss understory, dominated by C. mitis. In the highest treatments, N concentrations in C. mitis were 1.5-2.5 times greater than pre-treatment values. Peak N concentrations in the ground moss Pleurozium schreberi (1.4%) indicate that a threshold of N saturation was reached by year 3. We observed no changes in community composition of vascular and non-vascular plants, or changes in vascular plant tissue N. Chlorophyll levels in C. mitis increased with N treatment, but there was no indication of toxicity or changes to decomposition and growth. After five years of N application, only Peltigera polydactylon, a ground cyanolichen, appeared to be negatively impacted where the thalli showed necrosis at deposition loads >10kg N ha-1 yr-1. No changes to biomass or N ecosystem processes were observed. Based on these observations, we provide evidence that the first adverse ecological effects of N deposition in jack-pine stands occurred at deposition rates of 10 kg N ha-1 yr-1.

Investigating the Early Carbon Cycle Using Carbonaceous Inclusions and Dissolved Carbon in Detrital Zircon

NASA Astrophysics Data System (ADS)

Bell, E. A.; Boehnke, P.; Harrison, M.; Mao, W. L.

2015-12-01

Because the terrestrial rock record extends only to ~4 Ga and older materials thus far identified are limited to detrital zircons, information about volatile abundances and cycles on early Earth is limited. Carbon, for instance, plays an important role not only in the modern biosphere but also in deep recycling of materials between the crust and mantle. We are investigating the record of carbon abundance and origin in Hadean zircons from Jack Hills (W. Australia) using two main approaches. First, carbon may partition into the zircon structure at trace levels during crystallization from a magma, and better understanding of this partitioning behavior will allow for zircon's use as a monitor of magmatic carbon contents. We have measured carbon abundances in zircon from a variety of igneous rocks (gabbro; I-, A-, and S-type granitoids) via SIMS and found that although abundances are typically low (average raw 12C/30Si ~ 1x10-6), S-type granite zircons can reach a factor of 1000 over this background. Around 10% of Hadean zircons investigated show similar enrichments, consistent with other evidence for the derivation of many Jack Hills zircons from S-type granitoids and with the establishment of modern-level carbon abundances in the crust by ca. 4.2 Ga. Diamond and graphite inclusions reported in the Jack Hills zircons by previous studies proved to be contamination by polishing debris, leaving the true abundance of these materials in the population uncertain. On a second front, we have identified and investigated primary carbonaceous inclusions in these zircons. From a population of over 10,000 Jack Hills zircons, we identified one concordant 4.10±0.01 Ga zircon that contains primary graphite inclusions (so interpreted due to their enclosure in a crack-free zircon host as shown by transmission X-ray microscopy and their crystal habit). Their δ13CPDB of -24±5‰ is consistent with a biogenic origin and, in the absence of a likely inorganic mechanism to produce such a signal in a felsic igneous setting, may be evidence that a terrestrial biosphere had emerged by 4.1 Ga, or ~300 Ma earlier than has been previously proposed.

On Traveling Waves in Lattices: The Case of Riccati Lattices

NASA Astrophysics Data System (ADS)

Dimitrova, Zlatinka

2012-09-01

The method of simplest equation is applied for analysis of a class of lattices described by differential-difference equations that admit traveling-wave solutions constructed on the basis of the solution of the Riccati equation. We denote such lattices as Riccati lattices. We search for Riccati lattices within two classes of lattices: generalized Lotka-Volterra lattices and generalized Holling lattices. We show that from the class of generalized Lotka-Volterra lattices only the Wadati lattice belongs to the class of Riccati lattices. Opposite to this many lattices from the Holling class are Riccati lattices. We construct exact traveling wave solutions on the basis of the solution of Riccati equation for three members of the class of generalized Holling lattices.

Tea Tree Oil

MedlinePlus

... oil without problems, but some people may develop contact dermatitis (an allergic skin rash) or skin irritation on ... References Jack AR, Norris PL, Storrs FJ. Allergic contact dermatitis to plant extracts in cosmetics . Seminars in Cutaneous ...

Commander Lousma works with EEVT experiment and cryogenic tube on aft middeck

NASA Image and Video Library

1982-03-31

Commander Jack Lousma works with Electrophoresis Equipment Verification Test (EEVT) electrophoresis unit, cryogenic freezer and tube, and stowage locker equipment located on crew compartment middeck aft bulkhead.

Job Well Done aboard the Space Station

NASA Image and Video Library

2017-09-02

Expedition 52 Commander Fyodor Yurchikhin of Roscosmos and Flight Engineers Peggy Whitson and Jack Fischer of NASA, bid farewell to the crew remaining on the orbital outpost, including NASA’s Randy Bresnik.

CASIS PCG 6

NASA Image and Video Library

2017-06-06

iss052e000508 (June 6, 2017) --- View of astronaut Jack Fischer working with the Neutron Crystallographic Studies of Human Acetylcholinesterase for the Design of Accelerated Reactivators (CASIS PCG 6) experiment in the Japanese Experiment Module

Jack Steinberger and the Muon-Neutrino

Science.gov Websites

Production of Neutral Mesons by Photons, DOE Technical Report, October 1951 Experimental Survey of Strange take you to non-federal websites. Their policies may differ from this site. Website Policies/Important

ARC-2008-ACD08-0260-040

NASA Image and Video Library

2008-11-06

K-10 (red) robot operations tests at Marscape (Ames Mars Yard) with remote operations from Ames Future Flight Centeral (FFC) Simulator, L-R; Terry Fong, Melissa Rice and Harrison 'Jack' Schmitt (Apollo 17 Astronaut).

76 FR 71591 - Notice of Revocation of Customs Broker Licenses

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-18

... Seattle Mary Freeman 09980 Seattle Jack Gillam 03890 Seattle Scott Kauffman 17560 Seattle De Illa Lamb 11978 Seattle Karen Lovely 10411 Seattle Lori Murvin 20341 Seattle Douglas Shaver 06888 Seattle Robert...

Views of a Cal/OSHA Inspector.

PubMed

Oudiz, Jack

2009-01-01

Retiring CAL/OSHA Industrial Hygienist and Senior Safety Engineer Jack Oudiz offers his thoughts in the nature of a voluntary "exit interview" on his years working for the agency and its performance in its mission.

Dissolution of first unions in Colombia, Panama, and Peru.

PubMed

Goldman, N

1981-11-01

An analysis of marital histories from World Fertility Survey data in Colombia, Panama, and Peru indicates a high level of union dissolution: the probabilities of a first union ending by separation within twenty years of the onset of union equal .27, .40, and .18 in the three countries respectively. Dissolution probabilities are especially high among women with young ages at first union and among women residing in urban areas. For all subgroups studied, consensual unions are characterized by several times the risk of separation of legal marriages. Consensual unions are especially frequent among women in rural areas, women with little education and women who enter unions at young ages. The different prevalence of consensual unions among the different subgroups affects the associations between union stability and various correlates so that it becomes essential to investigate the factors affecting union stability for both consensual unions and legal marriages. In spite of high dissolution rates, remarriage rates in all three countries are also high, as are the percentages of time spent in a union. Hence, the potential effects of voluntary disruption of unions on fertility appear to be modest.

Testing of Compact Bolted Fasteners with Insulation and Friction-Enhanced Shims for NCSX

DOE Office of Scientific and Technical Information (OSTI.GOV)

L. E. Dudek, J.H. Chrzanowski, G. Gettelfinger, P. Heitzenroeder, S. Jurczynski, M. Viola and K. Freudenberg

The fastening of the National Compact Stellarator Experiment's (NCSX) modular coils presented a number of engineering and manufacturing challenges due to the high magnetic forces, need to control induced currents, tight tolerances and restrictive space envelope. A fastening method using high strength studs, jack nuts, insulating spacers, bushings and alumina coated shims was developed which met the requirements. A test program was conducted to verify the design. The tests included measurements of flatness of the spacers, determination of contact area, torque vs. tension of the studs and jack nuts, friction coefficient tests on the alumina and G-10 insulators, electrical tests,more » and tension relaxation tests due to temperature excursions from room temperature to liquid nitrogen temperatures. This paper will describe the design and the results of the test program.« less

An Alaskan legend

USGS Publications Warehouse

Mann, H.; Blodgett, R.B.

2009-01-01

Jack Lee is a prominent personality, an Alaskan individualist and a skeptic worthy of remembrance if for no other reason than being inextricably associated with the catastrophic Katmai eruption in 1912. Jack remains a provocative reminder of Alaska's pre-1958 drilling and was quite possibly the earliest observer (excepting natives and possibly Russians) of the oil seeps in the area now encompassed by the Becharof National Wildlife Refuge. His observation of the impressive live oil seeps in the Ugashik and Becharof Lakes area, and his subsequent involvement in the early drilling entirely consumed his future interests. He is a firm believer that individualism and suspicion are powerful tools when forced to reconsider alternatives to readily accepted interpretations of modern exploration results. His individualism and sometimes annoying, but thought-provoking skepticism remains useful in any field where clich??s provide safe guards from new concepts.

KENNEDY SPACE CENTER, FLA. - Amy Norris (left) packs some of the debris stored in the Columbia Debris Hangar. Jack Nowling works on the computer. About 83,000 pieces of debris were shipped to KSC during search and recovery efforts in East Texas. That represents about 38 percent of the dry weight of Columbia, equaling almost 85,000 pounds. An area of the Vehicle Assembly Building is being prepared to store the debris.

NASA Image and Video Library

2003-09-10

KENNEDY SPACE CENTER, FLA. - Amy Norris (left) packs some of the debris stored in the Columbia Debris Hangar. Jack Nowling works on the computer. About 83,000 pieces of debris were shipped to KSC during search and recovery efforts in East Texas. That represents about 38 percent of the dry weight of Columbia, equaling almost 85,000 pounds. An area of the Vehicle Assembly Building is being prepared to store the debris.

BOREAS TE-9 NSA Photosynthetic Response Data

NASA Technical Reports Server (NTRS)

Hall, Forrest G.; Curd, Shelaine (Editor); Dang, Qinglai; Margolis, Hank; Coyea, Marie

2000-01-01

The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-9 (Terrestrial Ecology) team collected several data sets related to chemical and photosynthetic properties of leaves. This data set describes: (1) the response of leaf and shoot-level photosynthesis to ambient and intercellular CO2 concentration, temperature, and incident photosynthetically active radiation (PAR) for black spruce, jack pine, and aspen during the three intensive field campaigns (IFCs) in 1994 in the Northern Study Area (NSA); (2) the response of stomatal conductance to vapor pressure difference throughout the growing season of 1994; and (3) a range of shoot water potentials (controlled in the laboratory) for black spruce and jack pine. The data are stored in tabular ASCII files. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

Synthesis, Urease Inhibition, Antioxidant, Antibacterial, and Molecular Docking Studies of 1,3,4-Oxadiazole Derivatives

PubMed Central

Hanif, Muhammad; Shoaib, Khurram; Saleem, Muhammad; Hasan Rama, Nasim; Zaib, Sumera; Iqbal, Jamshed

2012-01-01

A series of eighteen 1,3,4-oxadiazole derivatives have been synthesized by treating aromatic acid hydrazides with carbon disulfide in ethanolic potassium hydroxide yielding potassium salts of 1,3,4-oxadiazoles. Upon neutralization with 1 N hydrochloric acid yielded crude crystals of 1,3,4-oxadiazoles, which were purified by recrystallization in boiling methanol. The synthesized 1,3,4-oxadiazoles derivatives were evaluated in vitro for their urease inhibitory activities, most of the investigated compounds were potent inhibitors of Jack bean urease. The molecular docking studies were performed by docking them into the crystal structure of Jack bean urease to observe the mode of interaction of synthesized compounds. The synthesized compounds were also tested for antibacterial and antioxidant activities and some derivatives exhibited very promising results. PMID:22934191

KENNEDY SPACE CENTER, FLA. -- Endeavour backs out of the Orbiter Processing Facility for temporary transfer to the Vehicle Assembly Building. The move allows work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

NASA Image and Video Library

2004-01-09

KENNEDY SPACE CENTER, FLA. -- Endeavour backs out of the Orbiter Processing Facility for temporary transfer to the Vehicle Assembly Building. The move allows work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

Isotopic Composition of Oxygen in Lunar Zircons

NASA Technical Reports Server (NTRS)

Nemchin, A. A.; Whitehouse, M. J.; Pidgeon, R. T.; Meyer, C.

2005-01-01

The recent discovery of heavy oxygen in zircons from the Jack Hills conglomerates Wilde et al. and Mojzsis et al. was interpreted as an indication of presence of liquid water on the surface of Early Earth. The distribution of ages of Jack Hills zircons and lunar zircons appears to be very similar and therefore analysis of oxygen in the lunar grains may provide a reference frame for further study of the early history of the Earth as well as give additional information regarding processes that operated on the Moon. In the present study we have analysed the oxygen isotopic composition of zircon grains from three lunar samples using the Swedish Museum of Natural History CAMECA 1270 ion microprobe. The samples were selected as likely tests for variations in lunar oxygen isotopic composition. Additional information is included in the original extended abstract.

Climatic sensitivity, water-use efficiency, and growth decline in boreal jack pine (Pinus banksiana) forests in Northern Ontario

NASA Astrophysics Data System (ADS)

Dietrich, Rachel; Bell, F. Wayne; Silva, Lucas C. R.; Cecile, Alice; Horwath, William R.; Anand, Madhur

2016-10-01

Rises in atmospheric carbon dioxide (atmCO2) levels are known to stimulate photosynthesis and increase intrinsic water-use efficiency (iWUE) in trees. Stand-level increases in iWUE depend on the physiological response of dominant species to increases in atmCO2, while tree-level response to increasing atmCO2 depends on the balance between the direct effects of atmCO2 on photosynthetic rate and the indirect effects of atmCO2 on drought conditions. The aim of this study was to characterize the response of boreal jack pine (Pinus banksiana) stands in Northern Ontario to changes in atmCO2 and associated climatic change over the past 100 years. The impact of changes in growing season length, temperature, and precipitation, as well as atmCO2 on tree growth, was determined using stable carbon isotopes and dendrochronological analysis. Jack pine stands in this study were shown to be in progressive decline. As expected, iWUE was found to increase in association with rising atmCO2. However, increases in iWUE were not directly coupled with atmCO2, suggesting that the degree of iWUE improvement is limited by alternative factors. Water-use efficiency was negatively associated with tree growth, suggesting that warming- and drought-induced stomatal closure has likely led to deviations from expected atmCO2-enhanced growth. This finding corroborates that boreal forest stands are likely to face continued stress under future climatic warming.

Kinetics and Mechanism Study of Competitive Inhibition of Jack-Bean Urease by Baicalin

PubMed Central

Tan, Lirong; Su, Jiyan; Wu, Dianwei; Yu, Xiaodan; Su, Zuqing; Wu, Xiaoli; Kong, Songzhi; Lai, Xiaoping; Lin, Ji; Su, Ziren

2013-01-01

Baicalin (BA) is the principal component of Radix Scutellariae responsible for its pharmacological activity. In this study, kinetics and mechanism of inhibition by BA against jack-bean urease were investigated for its therapeutic potential. It was revealed that the IC50 of BA against jack-bean urease was 2.74 ± 0.51 mM, which was proved to be a competitive and concentration-dependent inhibition with slow-binding progress curves. The rapid formation of initial BA-urease complex with an inhibition constant of K i = 3.89 × 10−3 mM was followed by a slow isomerization into the final complex with an overall inhibition constant of K i* = 1.47 × 10−4 mM. High effectiveness of thiol protectors against BA inhibition indicated that the strategic role of the active-site sulfhydryl group of the urease was involved in the blocking process. Moreover, the inhibition of BA was proved to be reversible due to the fact that urease could be reactivated by dithiothreitol but not reactant dilution. Molecular docking assay suggested that BA made contacts with the important activating sulfhydryl group Cys-592 residues and restricted the mobility of the active-site flap. Taken together, it could be deduced that BA was a competitive inhibitor targeting thiol groups of urease in a slow-binding manner both reversibly and concentration-dependently, serving as a promising urease inhibitor for treatments on urease-related diseases. PMID:24198731

Geologic map of the Jam Up Cave and Pine Crest quadrangles, Shannon, Texas, and Howell Counties, Missouri

USGS Publications Warehouse

Weary, David J.; Orndorff, Randall C.; Repetski, John E.

2013-01-01

The Jam Up Cave and Pine Crest 7.5-minute quadrangles are located in south-central Missouri within the Salem Plateau region of the Ozark Plateaus physiographic province. About 2,400 to 3,100 feet (ft) of flat-lying to gently dipping Lower Paleozoic sedimentary rocks, mostly dolomite, chert, sandstone, and orthoquartzite, overlie Mesoproterozoic igneous basement rocks. Unconsolidated residuum, colluvium, terrace deposits, and alluvium overlie the sedimentary rocks. Numerous karst features, such as sinkholes, caves, and springs, have formed in the carbonate rocks. Many streams are spring fed. The topography is a dissected karst plain with elevations ranging from about 690 ft where the Jacks Fork River exits the northeastern corner of the Jam Up Cave quadrangle to about 1,350 ft in upland areas along the north-central edge and southwestern corner of the Pine Crest quadrangle. The most prominent physiographic feature is the valley of the Jacks Fork River. This reach of the upper Jacks Fork, with its clean, swiftly-flowing water confined by low cliffs and bluffs, provides one of the most beautiful canoe float trips in the nation. Most of the land in the quadrangles is privately owned and used primarily for grazing cattle and horses and growing timber. A large minority of the land within the quadrangles is publicly owned by the Ozark National Scenic Riverways of the National Park Service. Geologic mapping for this investigation was conducted in 2005 and 2006.

Jack Reeves and his science.

PubMed

Moore, Lorna G; Grover, Robert F

2006-04-28

John T. (Jack) Reeves' science is reviewed across the 37 years of his research career at the University of Colorado Health Sciences Center, a period which occupied approximately half his remarkable life. His contributions centered on understanding the inter-relatedness as well as the underlying mechanisms controlling the various components of the O(2) transport system. We review here his studies on exercise performance; these encompassed about half his scientific output with the other half being devoted to the study of hypoxic pulmonary hypertension. Early studies concerned cardiac output, showing how it was a balance between O(2) uptake and O(2) extraction, and that cardiac output during exercise at high altitude was reduced, most likely because of decreased plasma volume and left ventricular filling. Jack's many studies addressed virtually every aspect of the O(2) transport system -- adding significantly to our understanding of the syndromes of altitude illness, the mechanisms by which ventilatory sensitivity to hypoxia and hypercapnia influenced ventilatory acclimatization, and the contributions of the various limbs of the autonomic nervous system on systemic blood pressure, vascular resistance and substrate utilization. His scientific career ended abruptly in 2004 when struck by a car while biking to work, but his legacy remains in his more than 385+ research articles or chapters, the 40+ fellows he trained, and the countless number of younger (and older) scientists for whom he served as a role model for learning how to scrutinize their data and present their findings in clear and sometimes bold prose. An integral man, he is sorely missed.

The effects of combination of Eurycoma longifolia Jack ethanolic extract and doxorubicine on hematological profile in rats given by 7,12-dimethylbenz(a)anthracene

NASA Astrophysics Data System (ADS)

Nurani, L. H.; Mursyidi, A.; Widyarini, S.; Rohman, A.

2017-11-01

Doxorubicin (Dox) is known as anticancer drug commonly used for cancer treatment. Eurycoma longifolia Jack or Pasakbumi was reported to have chemopreventive effect. In cancer patients, there are some dysfunctions of blood parameter, therefore some hematologic tests are needed to monitor cancer patients. In this study, the effects of combination of ethanolic extract of E. longifolia Jack (EEE) and Dox on hematologic profiles were investigated in rats injected by DMBA. Rats were divided into eight groups. Group I was normal group; Group II, rats were treated with extract dose 100 mg/kgbw; Groups III, IV, V, VI, VII and VIII, rats were treated with Dox, DMBA, DMBA+Dox, DMBA+EEE, DMBA+Dox +EEE, and Dox+EEE, respectively. DMBA administration orally was conducted twice a week for 5 weeks. At 16th week of treatments, bloods were taken from orbitalis sinus for hematologicals profile (levels of Hb, erytrocyte, hematocrite, leukocyte, MCV, MCH, and differencial leucocyte count) measurements. These data were analyzed by one way ANOVA followed by LSD test. DMBA administration significantly decreased the hematological profiles compared to the normal group, except in lymphocyte level. Rats treated with extract and extract+Dox were able to increase the hematological profile compared to rats given by DMBA only. Based on these findings it can be concluded that the combination of EEE and Dox potentially increase hematological profile of rats given by DMBA.

Geohydrologic Investigations and Landscape Characteristics of Areas Contributing Water to Springs, the Current River, and Jacks Fork, Ozark National Scenic Riverways, Missouri

USGS Publications Warehouse

Mugel, Douglas N.; Richards, Joseph M.; Schumacher, John G.

2009-01-01

The Ozark National Scenic Riverways (ONSR) is a narrow corridor that stretches for approximately 134 miles along the Current River and Jacks Fork in southern Missouri. Most of the water flowing in the Current River and Jacks Fork is discharged to the rivers from springs within the ONSR, and most of the recharge area of these springs is outside the ONSR. This report describes geohydrologic investigations and landscape characteristics of areas contributing water to springs and the Current River and Jacks Fork in the ONSR. The potentiometric-surface map of the study area for 2000-07 shows that the groundwater divide extends beyond the surface-water divide in some places, notably along Logan Creek and the northeastern part of the study area, indicating interbasin transfer of groundwater between surface-water basins. A low hydraulic gradient occurs in much of the upland area west of the Current River associated with areas of high sinkhole density, which indicates the presence of a network of subsurface karst conduits. The results of a low base-flow seepage run indicate that most of the discharge in the Current River and Jacks Fork was from identified springs, and a smaller amount was from tributaries whose discharge probably originated as spring discharge, or from springs or diffuse groundwater discharge in the streambed. Results of a temperature profile conducted on an 85-mile reach of the Current River indicate that the lowest average temperatures were within or downstream from inflows of springs. A mass-balance on heat calculation of the discharge of Bass Rock Spring, a previously undescribed spring, resulted in an estimated discharge of 34.1 cubic feet per second (ft3/s), making it the sixth largest spring in the Current River Basin. The 13 springs in the study area for which recharge areas have been estimated accounted for 82 percent (867 ft3/s of 1,060 ft3/s) of the discharge of the Current River at Big Spring during the 2006 seepage run. Including discharge from other springs, the cumulative discharge from springs was over 90 percent of the river discharge at most of the spring locations, and was 92 percent at Big Spring and at the lower end of the ONSR. The discharge from the 1.9-mile long Pulltite Springs Complex measured in the 2006 seepage run was 88 ft3/s. Most of this (77 ft3/s) was from the first approximately 0.25 mi of the Pulltite Springs Complex. It has been estimated that the annual mean discharge from the Current River Springs Complex is 125 ft3/s, based on an apparent discharge of 50 ft3/s during a 1966 U.S. Geological Survey seepage run. However, a reinterpretation of the 1966 seepage run data shows that the discharge from the Current River Springs Complex instead was about 12.6 ft3/s, and the annual mean discharge was estimated to be 32 ft3/s, substantially less than 125 ft3/s. The 2006 seepage run showed a gain of only 12 ft3/s from the combined Round Spring and Current River Springs Complex from the mouth of Sinking Creek to 0.7 mi upstream from Root Hollow. The 2006 temperature profile measurements did not indicate any influx of spring discharge throughout the length of the Current River Springs Complex. The spring recharge areas with the largest number of identified sinkholes are Big Spring, Alley Spring, and Welch Spring. The spring recharge areas with the largest number of sinkholes per square mile of recharge area are Alley Spring, Blue Spring (Jacks Fork), Welch Spring, and Round Spring and the Current River Springs Complex. Using the currently known locations of losing streams, the Big Spring recharge area has the largest number of miles of losing stream, and the Bass Rock Spring recharge area has the largest number of miles of losing stream per unit recharge area. The spring recharge areas with the most open land and the least forested land per unit recharge area are Blue Spring (Jacks Fork), Welch Spring, Montauk Springs, and Alley Spring. The spring recharge areas with the least amount

75 FR 57820 - National Credit Union Administration Restoration Plan

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-22

... NATIONAL CREDIT UNION ADMINISTRATION National Credit Union Administration Restoration Plan AGENCY: National Credit Union Administration (NCUA). ACTION: Approval of National Credit Union Administration restoration plan. On September 16, 2010, the National Credit Union Administration (NCUA) implemented a...

29 CFR 1910.244 - Other portable tools and equipment.

Code of Federal Regulations, 2011 CFR

2011-07-01

... casting, stamping, or other suitable means. (2) Operation and maintenance. (i) In the absence of a firm... examined for possible defects. (viii) Jacks which are out of order shall be tagged accordingly, and shall...

29 CFR 1910.244 - Other portable tools and equipment.

Code of Federal Regulations, 2010 CFR

2010-07-01

... casting, stamping, or other suitable means. (2) Operation and maintenance. (i) In the absence of a firm... examined for possible defects. (viii) Jacks which are out of order shall be tagged accordingly, and shall...

29 CFR 1910.244 - Other portable tools and equipment.

Code of Federal Regulations, 2014 CFR

2014-07-01

... casting, stamping, or other suitable means. (2) Operation and maintenance. (i) In the absence of a firm... examined for possible defects. (viii) Jacks which are out of order shall be tagged accordingly, and shall...

29 CFR 1910.244 - Other portable tools and equipment.

Code of Federal Regulations, 2012 CFR

2012-07-01

... casting, stamping, or other suitable means. (2) Operation and maintenance. (i) In the absence of a firm... examined for possible defects. (viii) Jacks which are out of order shall be tagged accordingly, and shall...

29 CFR 1910.244 - Other portable tools and equipment.

Code of Federal Regulations, 2013 CFR

2013-07-01

... casting, stamping, or other suitable means. (2) Operation and maintenance. (i) In the absence of a firm... examined for possible defects. (viii) Jacks which are out of order shall be tagged accordingly, and shall...

77 FR 58354 - Foreign-Trade Zone 265-Conroe, TX; Notification of Proposed Production Activity, Bauer...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-20

..., packing crates, decals, textile straps, mirrors, insulation, articles of steel (shapes, angles, bars, rods...-conditioner components, heat exchangers, filters, fire extinguishers, hydraulic jacks/hoists, parts of boring...

Injected polyurethane slab jacking : interim report

DOT National Transportation Integrated Search

2000-09-01

Conventional methods for raising in-place concrete slabs to align roadway sections or to counteract subsidence requires pressure-injecting grout under the slab. As other transportation organizations have had success with the URETEK Method, which util...

Settlement at culverts.

DOT National Transportation Integrated Search

1984-05-01

Past construction methods have resulted in the need for leveling : wedges of asphaltic cement concrete or mud jacking at locations where a : reinforced concrete box culvert was replaced with a pipe culvert . : With the restraint of limited funds, mor...

50 CFR 665.401 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-10-01

... Lehi/maroobw red snapper, silvermouth Aphareus rutilans. Gogunafon/aiwe gray snapper, jobfish Aprion virescens. Tarakitu/etam Giant trevally, jack Caranx ignobilis. Tarakiton attelong/orong Black trevally... grouper Variola louti. Buninas agaga'/falaghal moroobw red snapper Etelis carbunculus. Abuninas...

50 CFR 665.401 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-10-01

... Lehi/maroobw red snapper, silvermouth Aphareus rutilans. Gogunafon/aiwe gray snapper, jobfish Aprion virescens. Tarakitu/etam Giant trevally, jack Caranx ignobilis. Tarakiton attelong/orong Black trevally... grouper Variola louti. Buninas agaga'/falaghal moroobw red snapper Etelis carbunculus. Abuninas...

50 CFR 665.401 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-10-01

... Lehi/maroobw red snapper, silvermouth Aphareus rutilans. Gogunafon/aiwe gray snapper, jobfish Aprion virescens. Tarakitu/etam Giant trevally, jack Caranx ignobilis. Tarakiton attelong/orong Black trevally... grouper Variola louti. Buninas agaga'/falaghal moroobw red snapper Etelis carbunculus. Abuninas...

Injected polyurethane slab jacking : final report.

DOT National Transportation Integrated Search

2002-06-01

Conventional methods for raising in-place concrete slabs to align roadway sections or to counteract subsidence requires pressure-injecting grout under the slab. As other transportation organizations have had success with the URETEK Method, which util...

8. INTERIOR BEADED WALL BOARDING SHOWING TRIAL MARKS FROM DIES ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

8. INTERIOR BEADED WALL BOARDING SHOWING TRIAL MARKS FROM DIES MADE IN CARPENTER'S SHOP Ph: Jack E, Boucher - March 1961 - Joseph Carpenter Silversmith Shop, 71 East Town Street, Norwichtown, New London County, CT

Management of tibial non-unions according to a novel treatment algorithm.

PubMed

Ferreira, Nando; Marais, Leonard Charles

2015-12-01

Tibial non-unions represent a spectrum of conditions that are challenging to treat. The optimal management remains unclear despite the frequency with which these diagnoses are encountered. The aim of this study was to determine the outcome of tibial non-unions managed according to a novel tibial non-union treatment algorithm. One hundred and eighteen consecutive patients with 122 uninfected tibial non-unions were treated according to our proposed tibial non-union treatment algorithm. All patients were followed-up clinically and radiologically for a minimum of six months after external fixator removal. Four patients were excluded because they did not complete the intended treatment process. The final study population consisted of 94 men and 24 women with a mean age of 34 years. Sixty-seven non-unions were stiff hypertrophic, 32 mobile atrophic, 16 mobile oligotrophic and one true pseudoarthrosis. Six non-unions were classified as type B1 defect non-unions. Bony union was achieved after the initial surgery in 113/122 (92.6%) tibias. Nine patients had failure of treatment. Seven persistent non-unions were successfully retreated according to the tibial non-union treatment algorithm. This resulted in final bony union in 120/122 (98.3%) tibias. The proposed tibial non-union treatment algorithm appears to produce high union rates across a diverse group of tibial non-unions. Tibial non-unions however, remain difficult to treat and should be referred to specialist units where advanced reconstructive techniques are practiced on a regular basis. Copyright © 2015 Elsevier Ltd. All rights reserved.

Benchmarking Helps Measure Union Programs, Operations.

ERIC Educational Resources Information Center

Mann, Jerry

2001-01-01

Explores three examples of benchmarking by college student unions. Focuses on how a union can collect information from other unions for use as benchmarking standards for the purposes of selling a concept or justifying program increases, or for comparing a union's financial performance to other unions. (EV)

The relationship between labor unions and safety in US airlines: Is there a "union effect?"

NASA Astrophysics Data System (ADS)

Zapf, Renee Catherine

Every airline union claims to work for safety and presents anecdotes where greater airline safety has been achieved through union efforts. The effect unionization has on safety outcomes in U.S. commercial airlines, however, wasn't found to be previously tested. Studies have shown that in industries such as coal mining, retail, and construction, unionization does lead to an increase in safety. This study evaluated the safety rates of 15 major US commercial airlines to compare the difference between unionized and non-unionized airlines. These safety rates were compared based on if and how long each airline's pilots and flight attendants have been unionized, to determine if unionization had an effect on safety outcomes. The 15 airlines included in the study identified as operating most of the years between 1990 and 2013, with annual departures averaging over 130,000, available through the Bureau of Transportation Statistics. Accident and Incident information was acquired through the National Transportation Safety Board database. The number of accident and incidents divided by the total departures at each airline was used as the safety rate. Union websites provided information on unionization at the airlines. Due to the complex nature of the aviation industry, a number of confounding factors could have affected the tests, including mergers, route structures, and legislation. To help control for these confounding factors, this study was limited to airlines with a stable presence in the industry over time, which limited the number of airlines included. No significant difference was found between unionized and non-unionized airlines in this study, though the mean safety rate of unionized airlines was found be better than non-unionized airlines. This study did not take into account safety improvements that were union-backed and eventually required at all airlines, regardless of unionization. Due to the large sample size of the small population the difference in safety rate means could be indicative of greater safety in unionized airlines.

12 CFR 704.11 - Corporate Credit Union Service Organizations (Corporate CUSOs).

Code of Federal Regulations, 2012 CFR

2012-01-01

... 12 Banks and Banking 7 2012-01-01 2012-01-01 false Corporate Credit Union Service Organizations (Corporate CUSOs). 704.11 Section 704.11 Banks and Banking NATIONAL CREDIT UNION ADMINISTRATION REGULATIONS AFFECTING CREDIT UNIONS CORPORATE CREDIT UNIONS § 704.11 Corporate Credit Union Service Organizations...

12 CFR 704.11 - Corporate Credit Union Service Organizations (Corporate CUSOs).

Code of Federal Regulations, 2014 CFR

2014-01-01

... 12 Banks and Banking 7 2014-01-01 2014-01-01 false Corporate Credit Union Service Organizations (Corporate CUSOs). 704.11 Section 704.11 Banks and Banking NATIONAL CREDIT UNION ADMINISTRATION REGULATIONS AFFECTING CREDIT UNIONS CORPORATE CREDIT UNIONS § 704.11 Corporate Credit Union Service Organizations...

12 CFR 704.11 - Corporate Credit Union Service Organizations (Corporate CUSOs).

Code of Federal Regulations, 2013 CFR

2013-01-01

... 12 Banks and Banking 7 2013-01-01 2013-01-01 false Corporate Credit Union Service Organizations (Corporate CUSOs). 704.11 Section 704.11 Banks and Banking NATIONAL CREDIT UNION ADMINISTRATION REGULATIONS AFFECTING CREDIT UNIONS CORPORATE CREDIT UNIONS § 704.11 Corporate Credit Union Service Organizations...

Neoarchean metamorphism recorded in high-precision Sm-Nd isotope systematics of garnets from the Jack Hills (Western Australia)

NASA Astrophysics Data System (ADS)

Eccles, K. A.; Baxter, E. F.; Mojzsis, S. J.; Marschall, H.; Williams, M. L.; Jercinovic, M. J.

2013-12-01

Studies of metasedimentary rocks from the Jack Hills, which host Earth's oldest known detrital minerals, have focused on zircon and occasionally monazite or xenotime, but no attention has been directed toward one of the most common mineral markers of metamorphism: garnet. Garnet can provide a record of the post-depositional, prograde metamorphic history of Archean metasedimentary rocks. Additionally, the use of a newly developed detrital garnet dating technique [1,2] may reveal information about pre-depositional metamorphism that could address lingering questions about the nature and timing of Earth's earliest tectonometamorphic events. Here we investigate garnet from the Jack Hills metasedimentary rocks to test whether they record in situ metamorphism or are a detrital relict of even older metamorphic events. We identified garnet in two bulk quartz-pebble conglomerate samples collected from the 'discovery' outcrop at Eranondoo Hill in the Jack Hills of Western Australia. Electron microprobe analyses of polished grains and SEM measurements of unpolished grain surfaces are consistent, revealing garnet composition indicative of a single generation/population of predominantly almandine-spessartine solid solution (~10-35% mole fraction spessartine). Compositional maps of garnet grains reveal little zoning and no discontinuities, most consistent with a single growth event. Dating Jack Hills' garnet via the Sm-Nd system is possible due to continued development of small sample analysis techniques, including running NdO+ TIMS analyses with Ta2O5 activator [3] permitting <50 ppm 2 sigma analytical precision on a 400pg in-house standard and continued improvement in blanks (<15pg full procedural blanks). Additionally, employing a nondestructive chemical prescreening technique (tabletop SEM) allows for grouping of multiple grains based on chemical similarity. Final Nd loads in the 450-750pg range routinely yield dates with precisions <×10Ma for two point isochrons between clean garnet (Sm/Nd ≥ 1.0) and their leached inclusion populations [2]. Four grouped garnet grain separates from one sample yield preliminary dates of 2703.6×6.0Ma, 2612.4×6.0Ma, 2605.0×5.5Ma, and 2567.3×8.3Ma, while the second sample yielded a date of 2579.6×4.6 Ma (2σ). Compositional and geochronologic data indicate likely in situ garnet growth during a late Archean greenschist facies metamorphic event. These dates are generally consistent with published monazite ages placing a metamorphic event at ~ca.2.65Ga [4,5]. It remains possible that an as yet unidentified detrital garnet component is present and may explain some of the scatter in absolute age. [1] Baxter EF, Jordan MK & Inglis JD, 2010, Goldschmidt [2] Baxter EF, Eccles KA & Sullivan N, 2012, Goldschmidt [3] Harvey J & Baxter EF, 2009, Chem Geol, 258, 251-257 [4] Rasmussen B, et al, 2010, Precambrian Res, 180, 26-46 [5] Iizuka T, et al, 2010, Contrib Mineral Petr, 160, 803-823

A Mechanical Lattice Aid for Crystallography Teaching.

ERIC Educational Resources Information Center

Amezcua-Lopez, J.; Cordero-Borboa, A. E.

1988-01-01

Introduces a 3-dimensional mechanical lattice with adjustable telescoping mechanisms. Discusses the crystalline state, the 14 Bravais lattices, operational principles of the mechanical lattice, construction methods, and demonstrations in classroom. Provides lattice diagrams, schemes of the lattice, and various pictures of the lattice. (YP)

ETR ELECTRICAL BUILDING, TRA648, INTERIOR. SWITCHGEAR. INL NEGATIVE NO. 563794. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

ETR ELECTRICAL BUILDING, TRA-648, INTERIOR. SWITCHGEAR. INL NEGATIVE NO. 56-3794. Jack L. Anderson, Photographer, 11/26/1956 - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

ETR ELECTRICAL BUILDING, TRA648. BATTERY ROOM. INL NEGATIVE NO. 563785. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

ETR ELECTRICAL BUILDING, TRA-648. BATTERY ROOM. INL NEGATIVE NO. 56-3785. Jack L. Anderson, Photographer, 11/26/1956 - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

77 FR 14420 - Landmarks Committee of the National Park System Advisory Board Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-09

...: Nominations California KNIGHT'S FERRY BRIDGE, Stanislaus County, CA U.S. COURT HOUSE AND POST OFFICE (COURT... SANGRE DE CRISTO LAND GRANT HISTORIC DISTRICT, Costilla County, CO Kansas BLACK JACK BATTLEFIELD, Douglas...

75 FR 23670 - Polyethylene Retail Carrier Bags from the Socialist Republic of Vietnam: Countervailing Duty Order

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-04

... Calvert or Jun Jack Zhao, AD/CVD Operations, Office 6, Import Administration, International Trade..., convenience, department, specialty retail, discount stores, and restaurants to their customers to package and...

78 FR 48773 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-09

... HUMBERTO CASANOVA DAWN ELIZABETH CASTILLO CHRISTINE WYSS MARTINEZ CAULFIELD DANA MINET CHAMBERLAIN... JACOB MICHAEL NAFZIGER WILLIAM J NAIR DEEPAK DIVAKARAN NEESER IRENE SYLVIA NEILSEN GREGAR JACK NELSON...

Using Jack Tales in a Second Grade Class.

ERIC Educational Resources Information Center

Brown, Doris

1987-01-01

Describes a project in which Kentucky second grades developed puppet shows and photography activities based on traditional Appalachian oral tales. Discusses student progress in language arts skills, creativity, use of audiovisual equipment, and group cooperation. (SV)

15. Detail view of connection between vertical posts and deck ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

15. Detail view of connection between vertical posts and deck beam. Jack Boucher, photographer, 1983 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

14. Detail view of connection between vertical post and bottom ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

14. Detail view of connection between vertical post and bottom chord member. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

ARC-2010-ACD10-0015-109

NASA Image and Video Library

2010-01-28

Ames 70th Anniversary Turn Back the Clock Day with antique Class Cars and Classic Car parade around the center. Lewis Braxton III, Ames Deputy Center Director and Jack Boyd, Ames Historian lead the parade in Lew's Mustang.

77 FR 3226 - Notice of Public Meetings of the Committee on Rulemaking of the Administrative Conference of the...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-01-23

...;and investigations, committee meetings, agency decisions and rulings, #0;delegations of authority... draft report on the Midnight Rules Project. The report, prepared by Professor Jack Beermann (Boston...

Region 9: Arizona Adequate Letter (10/14/2003)

EPA Pesticide Factsheets

This is a letter from Jack P. Broadben,. Director, to Nancy Wrona and Dennis Smith informing them that Maricopa County's motor vehicle emissions budgets in the 2003 MAGCO Maintenance Plan are adequate for transportation conformity purposes.

Activities during the "Bob Hope Special" for the Ed White Memorial Benefit.

NASA Image and Video Library

2009-10-08

Activities during the "Bob Hope Special" for the Ed White Memorial Benefit. Left to right : Mayor of Houston Louie Welch, Bob Hope, Astronaut Jack Swigert , Astronaut Deke Slayton, Sig Sjoberg, Astronaut Fred Haise.

BridgePBEE | BridgePBEE

Science.gov Websites

jacking Item 22: Bridge removal (column) Item 23: Bridge removal (portion) Item 24: Approach slab removal for: Search Menu Log in Register PEER Center - 325 Davis Hall, University of California, Berkeley, CA

Region 9: California Los Angeles (Coachella) Adequate Letter (4/18/2003)

EPA Pesticide Factsheets

This is a letter from Jack Broadbent, Director, to Catherine Witherspoon regarding Coachella Valley's transportation conformity motor vehicle emissions budgets in the particulate matter (PM-10) progress and attainment plan and motor vehicle emissions

12 CFR 701.19 - Benefits for employees of Federal credit unions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Benefits for employees of Federal credit unions... CREDIT UNIONS ORGANIZATION AND OPERATION OF FEDERAL CREDIT UNIONS § 701.19 Benefits for employees of Federal credit unions. (a) General authority. A federal credit union may provide employee benefits...

12 CFR 704.3 - Corporate credit union capital.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 12 Banks and Banking 6 2011-01-01 2011-01-01 false Corporate credit union capital. 704.3 Section... CORPORATE CREDIT UNIONS § 704.3 Corporate credit union capital. (a) Capital plan. A corporate credit union... activities, and the periodic review and reassessment of the capital position of the corporate credit union...

PLANNING AND OPERATING COLLEGE UNION BUILDINGS.

ERIC Educational Resources Information Center

BUTTS, PORTER

THIS MONOGRAPH IS A DISCUSSION OF FOUR ASPECTS OF STUDENT UNIONS. PART ONE DISCUSSES THE NATURE AND PURPOSE OF A UNION AND THE UNION AS A CAMPUS CENTER. PART TWO DEALS WITH THE PLANNING OF UNION BUILDINGS AND GIVES PROCEDURES, PRINCIPLES AND CAUTIONS. UNION FACILITIES AND SERVICES ARE LISTED. PART THREE DISCUSSES THE ORGANIZATION AND ACTIVITIES OF…

Skill networks and measures of complex human capital

PubMed Central

2017-01-01

We propose a network-based method for measuring worker skills. We illustrate the method using data from an online freelance website. Using the tools of network analysis, we divide skills into endogenous categories based on their relationship with other skills in the market. Workers who specialize in these different areas earn dramatically different wages. We then show that, in this market, network-based measures of human capital provide additional insight into wages beyond traditional measures. In particular, we show that workers with diverse skills earn higher wages than those with more specialized skills. Moreover, we can distinguish between two different types of workers benefiting from skill diversity: jacks-of-all-trades, whose skills can be applied independently on a wide range of jobs, and synergistic workers, whose skills are useful in combination and fill a hole in the labor market. On average, workers whose skills are synergistic earn more than jacks-of-all-trades. PMID:29133397

[Malignant narcissism and sexual homicide--exemplified by the Jack Unterweger case].

PubMed

Haller, R

1999-01-01

With the syndrome of malignant narcissism, which is characterised by narcissistic personality disorder, anti-social behaviour, sadism and a marked tendency to paranoid reactions, Kernberg (1985, 1996) describes an independent form of pathological narcissism. According to Stone (1996) this is found in many mass-murderers and serial killers. On the basis of the example of Jack Unterweger the connection between malignant narcissism and sexual offence is discussed as to psychodynamic development, personality structure and psychopathology. Unterweger, who was convicted to lifelong imprisonment in 1976 for sadistic sexual murder, became a wellknown writer in prison and was released prematurely in 1990 as the Austria case of successful rehabilitation. As stated in the sentence passed against him he killed 11 prostitutes in Europe and the USA within the next 18 months, but never pleaded guilty. Psychiatric examination revealed numerous elements of malignant narcissism and the constellation of his development and life was typical of serial offenders.

AmeriFlux CA-Qcu Quebec - Eastern Boreal, Black Spruce/Jack Pine Cutover

DOE Data Explorer

Margolis, Hank A. [Université Laval

2016-01-01

This is the AmeriFlux version of the carbon flux data for the site CA-Qcu Quebec - Eastern Boreal, Black Spruce/Jack Pine Cutover. Site Description - The ground is gently rolling with a weak slope (<5%). In mesic areas (designated as well to moderately well drained areas, according to the Canadian System of Soil Classification (Agriculture Canada Expert Committee on Soil Survey, 1983)), the soil is a ferro-humic to humic podzol covered by an organic layer having an average depth of 26 cm (Fig. 1). In humid areas, the soil is organic (imperfectly to poorly drained) with an average organic layer of 125 cm. Mesic areas accounted for approximately 75% of the total surface area of the footprint and humid areas accounted for 25%. Full-time continuous measurements eneded in 2011. Intermittent measurements are on-going as resources permit.

Portable musical instrument amplifier

DOEpatents

Christian, David E.

1990-07-24

The present invention relates to a musical instrument amplifier which is particularly useful for electric guitars. The amplifier has a rigid body for housing both the electronic system for amplifying and processing signals from the guitar and the system's power supply. An input plug connected to and projecting from the body is electrically coupled to the signal amplifying and processing system. When the plug is inserted into an output jack for an electric guitar, the body is rigidly carried by the guitar, and the guitar is operatively connected to the electrical amplifying and signal processing system without use of a loose interconnection cable. The amplifier is provided with an output jack, into which headphones are plugged to receive amplified signals from the guitar. By eliminating the conventional interconnection cable, the amplifier of the present invention can be used by musicians with increased flexibility and greater freedom of movement.

BOREAS TE-10 Leaf Optical Properties

NASA Technical Reports Server (NTRS)

Hall, Forrest G. (Editor); Papagno, Andrea (Editor); Chan, Stephen S.; Middleton, Elizabeth

2000-01-01

The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-10 (Terrestrial Ecology) team collected several data sets in support of its efforts to characterize and interpret information on the reflectance, transmittance, gas exchange, oxygen evolution, and biochemical properties of boreal vegetation. This data set describes the spectral optical properties (reflectance and transmittance) of boreal forest conifers and broadleaf tree leaves as measured with a Spectron Engineering SE590 spectroradiometer at the Southern Study Area Old Black Spruce (SSA OBS), Old Jack Pine (OJP), Young Jack Pine (YJP), Old Aspen (OA), Old Aspen Auxiliary (OA-AUX), Young Aspen Auxiliary (YA-AUX), and Young Aspen (YA) sites. The data were collected during the growing seasons of 1994 and 1996 and are stored in tabular ASCII files. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

An improved partial least-squares regression method for Raman spectroscopy

NASA Astrophysics Data System (ADS)

Momenpour Tehran Monfared, Ali; Anis, Hanan

2017-10-01

It is known that the performance of partial least-squares (PLS) regression analysis can be improved using the backward variable selection method (BVSPLS). In this paper, we further improve the BVSPLS based on a novel selection mechanism. The proposed method is based on sorting the weighted regression coefficients, and then the importance of each variable of the sorted list is evaluated using root mean square errors of prediction (RMSEP) criterion in each iteration step. Our Improved BVSPLS (IBVSPLS) method has been applied to leukemia and heparin data sets and led to an improvement in limit of detection of Raman biosensing ranged from 10% to 43% compared to PLS. Our IBVSPLS was also compared to the jack-knifing (simpler) and Genetic Algorithm (more complex) methods. Our method was consistently better than the jack-knifing method and showed either a similar or a better performance compared to the genetic algorithm.

Effect of additives on the purification of urease

NASA Astrophysics Data System (ADS)

Yu, X.; Wang, J.; Ulrich, J.

2015-12-01

The effect of additives on the purification of proteins was investigated. The target protein studied here is the enzyme urease. Studies on the purification of urease from jack bean meal were carried out. 32% (v/v) acetone was utilized to extract urease from the jack bean meal. Further purification by crystallization with the addition of 2-mercaptoethanol and EDTA disodium salt dehydrate was carried out. It was found out that the presence of additives can affect the selectivity of the crystallization. Increases in both purity and yield of the urease after crystallization were observed in the presence of additives, which were proven using both SDS-PAGE and activity. Urease crystals with a yield of 69.9% and a purity of 85.1% were obtained in one crystallization step in the presence of additives. Furthermore, the effect of additives on the thermodynamics and kinetics of urease crystallization was studied.

BOREAS TE-23 Canopy Architecture and Spectral Data from Hemispherical Photographs

NASA Technical Reports Server (NTRS)

Rich, Paul M.; Hall, Forrest G. (Editor); Papagno, Andrea (Editor)

2000-01-01

The Boreal Ecosystem-Atmospheric Study (BOREAS) TE-23 (Terrestrial Ecology) team collected hemispherical photographs in support of its efforts to characterize and interpret information on estimates of canopy architecture and radiative transfer properties for most BOREAS study sites. Various Old Aspen (OA), Old Black Spruce (OBS), Old Jack Pine (OJP), Young Jack Pine (YJP), and Young Aspen (YA) sites in the boreal forest were measured from May to August 1994. The hemispherical photographs were used to derive values of leaf area index (LAI), leaf angle, gap fraction, and clumping index. This documentation describes these derived values. The derived data are stored in tabular ASCII files. The hemispherical photographs are stored in the original set of 42 CD-ROMs that were supplied by TE-23. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

Software systems for modeling articulated figures

NASA Technical Reports Server (NTRS)

Phillips, Cary B.

1989-01-01

Research in computer animation and simulation of human task performance requires sophisticated geometric modeling and user interface tools. The software for a research environment should present the programmer with a powerful but flexible substrate of facilities for displaying and manipulating geometric objects, yet insure that future tools have a consistent and friendly user interface. Jack is a system which provides a flexible and extensible programmer and user interface for displaying and manipulating complex geometric figures, particularly human figures in a 3D working environment. It is a basic software framework for high-performance Silicon Graphics IRIS workstations for modeling and manipulating geometric objects in a general but powerful way. It provides a consistent and user-friendly interface across various applications in computer animation and simulation of human task performance. Currently, Jack provides input and control for applications including lighting specification and image rendering, anthropometric modeling, figure positioning, inverse kinematics, dynamic simulation, and keyframe animation.

AmeriFlux US-Wi6 Pine barrens #1 (PB1)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chen, Jiquan

This is the AmeriFlux version of the carbon flux data for the site US-Wi6 Pine barrens #1 (PB1). Site Description - The Wisconsin Pine Barrens site is located in the Washburn Ranger District of the northeastern section of Chequamegon National Forest. A member of the northern coniferous-deciduous biome, surveys from the mid-19th century indicate the region consisted of a mixed stand of red, white, and jack pines. After extensive timber harvesting, wildfires, and farming activity, the region turned into a fragmented mosaic of stands of various ages and composition. As an assemblage, the ten Wisconsin sites are indicative of themore » successional stages of development in the predominant stand types of a physically homogeneous landscape. In order to establish and maintain both natural and plantation jack pine stands, pine barrens undergo prescribed burns and harvesting rotations. Pine Barrens occupy 17% of the region in 2001.« less

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis is backed out of the Vehicle Assembly Building for transfer back to the Orbiter Processing Facility. Atlantis spent 10 days in the VAB to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

NASA Image and Video Library

2003-12-16

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis is backed out of the Vehicle Assembly Building for transfer back to the Orbiter Processing Facility. Atlantis spent 10 days in the VAB to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

KENNEDY SPACE CENTER, FLA. -- Endeavour settles into place inside the Vehicle Assembly Building (VAB) where it has been moved for temporary storage. It left the Orbiter Processing Facility (OPF) to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

NASA Image and Video Library

2004-01-09

KENNEDY SPACE CENTER, FLA. -- Endeavour settles into place inside the Vehicle Assembly Building (VAB) where it has been moved for temporary storage. It left the Orbiter Processing Facility (OPF) to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

KENNEDY SPACE CENTER, FLA. -- Endeavour begins rolling out of the Orbiter Processing Facility for temporary transfer to the Vehicle Assembly Building. The move allows work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

NASA Image and Video Library

2004-01-09

KENNEDY SPACE CENTER, FLA. -- Endeavour begins rolling out of the Orbiter Processing Facility for temporary transfer to the Vehicle Assembly Building. The move allows work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

KENNEDY SPACE CENTER, FLA. -- Endeavour rolls into the Vehicle Assembly Building (VAB) for temporary storage. The orbiter has been moved from the Orbiter Processing Facility (OPF) to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

NASA Image and Video Library

2004-01-09

KENNEDY SPACE CENTER, FLA. -- Endeavour rolls into the Vehicle Assembly Building (VAB) for temporary storage. The orbiter has been moved from the Orbiter Processing Facility (OPF) to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

KENNEDY SPACE CENTER, FLA. -- Endeavour is towed toward the Vehicle Assembly Building for temporary storage. The orbiter has been moved from the Orbiter Processing Facility (OPF) to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

NASA Image and Video Library

2004-01-09

KENNEDY SPACE CENTER, FLA. -- Endeavour is towed toward the Vehicle Assembly Building for temporary storage. The orbiter has been moved from the Orbiter Processing Facility (OPF) to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis rolls into the Orbiter Processing Facility after spending 10 days in the Vehicle Assembly Building. The hiatus in the VAB allowed work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

NASA Image and Video Library

2003-12-16

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis rolls into the Orbiter Processing Facility after spending 10 days in the Vehicle Assembly Building. The hiatus in the VAB allowed work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

KENNEDY SPACE CENTER, FLA. -- Endeavour is ready to be rolled out of the Orbiter Processing Facility for temporary transfer to the Vehicle Assembly Building. The move allows work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

NASA Image and Video Library

2004-01-09

KENNEDY SPACE CENTER, FLA. -- Endeavour is ready to be rolled out of the Orbiter Processing Facility for temporary transfer to the Vehicle Assembly Building. The move allows work to be performed in the OPF that can only be accomplished while the bay is empty. Work scheduled in the OPF includes annual validation of the bay’s cranes, work platforms, lifting mechanisms and jack stands. Endeavour will remain in the VAB for approximately 12 days, then return to the OPF.

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis is back inside the Orbiter Processing Facility after spending 10 days in the Vehicle Assembly Building. The hiatus in the VAB allowed work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

NASA Image and Video Library

2003-12-16

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis is back inside the Orbiter Processing Facility after spending 10 days in the Vehicle Assembly Building. The hiatus in the VAB allowed work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

KENNEDY SPACE CENTER, FLA. -- The orbiter Atlantis is backed away from the Vehicle Assembly Building for transfer back to the Orbiter Processing Facility. Atlantis spent 10 days in the VAB to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

NASA Image and Video Library

2003-12-16

KENNEDY SPACE CENTER, FLA. -- The orbiter Atlantis is backed away from the Vehicle Assembly Building for transfer back to the Orbiter Processing Facility. Atlantis spent 10 days in the VAB to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis rolls toward the Orbiter Processing Facility after spending 10 days in the Vehicle Assembly Building. The hiatus in the VAB allowed work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

NASA Image and Video Library

2003-12-16

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis rolls toward the Orbiter Processing Facility after spending 10 days in the Vehicle Assembly Building. The hiatus in the VAB allowed work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

KENNEDY SPACE CENTER, FLA. -- The orbiter Atlantis is backed out of the Vehicle Assembly Building for transfer back to the Orbiter Processing Facility. Atlantis spent 10 days in the VAB to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

NASA Image and Video Library

2003-12-16

KENNEDY SPACE CENTER, FLA. -- The orbiter Atlantis is backed out of the Vehicle Assembly Building for transfer back to the Orbiter Processing Facility. Atlantis spent 10 days in the VAB to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis rolls out of the Vehicle Assembly Building for transfer back to the Orbiter Processing Facility. Atlantis spent 10 days in the VAB to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

NASA Image and Video Library

2003-12-16

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis rolls out of the Vehicle Assembly Building for transfer back to the Orbiter Processing Facility. Atlantis spent 10 days in the VAB to allow work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis is towed back to the Orbiter Processing Facility after spending 10 days in the Vehicle Assembly Building. The hiatus in the VAB allowed work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

NASA Image and Video Library

2003-12-16

KENNEDY SPACE CENTER, FLA. - The orbiter Atlantis is towed back to the Orbiter Processing Facility after spending 10 days in the Vehicle Assembly Building. The hiatus in the VAB allowed work to be performed in the OPF that can only be accomplished while the bay is empty. Work included annual validation of the bay's cranes, work platforms, lifting mechanisms and jack stands. Work resumes to prepare Atlantis for launch in September 2004 on the first return-to-flight mission, STS-114.

Applying the vantage PDMS to jack-up drilling ships

NASA Astrophysics Data System (ADS)

Yin, Peng; Chen, Yuan-Ming; Cui, Tong-Kai; Wang, Zi-Shen; Gong, Li-Jiang; Yu, Xiang-Fen

2009-09-01

The plant design management system (PDMS) is an integrated application which includes a database and is useful when designing complex 3-D industrial projects. It could be used to simplify the most difficult part of a subsea oil extraction project—detailed pipeline design. It could also be used to integrate the design of equipment, structures, HVAC, E-ways as well as the detailed designs of other specialists. This article mainly examines the applicability of the Vantage PDMS database to pipeline projects involving jack-up drilling ships. It discusses the catalogue (CATA) of the pipeline, the spec-world (SPWL) of the pipeline, the bolt tables (BLTA) and so on. This article explains the main methods for CATA construction as well as problem in the process of construction. In this article, the authors point out matters needing attention when using the Vantage PDMS database in the design process and discuss partial solutions to these questions.

Antioxidant and free radical scavenging activities of Gastrodia elata Bl. and Uncaria rhynchophylla (Miq.) Jacks.

PubMed

Liu, J; Mori, A

1992-12-01

Gastrodia elata Bl. (GE) and Uncaria rhynchophylla (Miq.) Jacks (UR) are two traditional Chinese medicinal herbal drugs, used for the treatment of convulsions and epilepsy. Their antioxidant effects in vivo and their free radical scavenging effects in vitro were investigated. Epileptogenic foci in the lateral brain of the rat were induced by the injection of ferric chloride into the lateral cortex. Both extracts significantly inhibited the increase in levels of lipid peroxide in the ipsilateral cortex, at all times observed. In addition, the two extracts also induced an early increase of activity of superoxide dismutase in the mitochondrial fraction of the ipsilateral cortex. In in vitro experiments, the two extracts exhibited significant dose-dependent scavenging effects on free radicals, using electron spin resonance spectroscopy. These results suggest that the proposed antiepileptic effects of GE and UR may be attributable to the antioxidant activity of the active components in these two medicinal herbs.

12 CFR 702.302 - Net worth categories for new credit unions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Net worth categories for new credit unions. 702.302 Section 702.302 Banks and Banking NATIONAL CREDIT UNION ADMINISTRATION REGULATIONS AFFECTING CREDIT UNIONS PROMPT CORRECTIVE ACTION Alternative Prompt Corrective Action for New Credit Unions § 702.302 Net worth categories for new credit unions....

Analysis of the car body stability performance after coupler jack-knifing during braking

NASA Astrophysics Data System (ADS)

Guo, Lirong; Wang, Kaiyun; Chen, Zaigang; Shi, Zhiyong; Lv, Kaikai; Ji, Tiancheng

2018-06-01

This paper aims to improve car body stability performance by optimising locomotive parameters when coupler jack-knifing occurs during braking. In order to prevent car body instability behaviour caused by coupler jack-knifing, a multi-locomotive simulation model and a series of field braking tests are developed to analyse the influence of the secondary suspension and the secondary lateral stopper on the car body stability performance during braking. According to simulation and test results, increasing secondary lateral stiffness contributes to limit car body yaw angle during braking. However, it seriously affects the dynamic performance of the locomotive. For the secondary lateral stopper, its lateral stiffness and free clearance have a significant influence on improving the car body stability capacity, and have less effect on the dynamic performance of the locomotive. An optimised measure was proposed and adopted on the test locomotive. For the optimised locomotive, the lateral stiffness of secondary lateral stopper is increased to 7875 kN/m, while its free clearance is decreased to 10 mm. The optimised locomotive has excellent dynamic and safety performance. Comparing with the original locomotive, the maximum car body yaw angle and coupler rotation angle of the optimised locomotive were reduced by 59.25% and 53.19%, respectively, according to the practical application. The maximum derailment coefficient was 0.32, and the maximum wheelset lateral force was 39.5 kN. Hence, reasonable parameters of secondary lateral stopper can improve the car body stability capacity and the running safety of the heavy haul locomotive.

Sulfur in zircons: A new window into melt chemistry

NASA Astrophysics Data System (ADS)

Tang, H.; Bell, E. A.; Boehnke, P.; Barboni, M.; Harrison, T. M.

2017-12-01

The abundance and isotopic composition of sulfur are important tools for exploring the photochemistry of the atmosphere, the thermal history of mantle and igneous rocks, and ancient metabolic processes on the early Earth. Because the oldest terrestrial samples are zircons, we developed a new in-situ procedure to analyze the sulfur content of zircons using the CAMECA ims 1290 at UCLA. We analyzed zircons from three metaluminous/I-type granites (reduced and oxidized Peninsular range and Elba), which exhibit low sulfur abundance with the average of 0.5ppm, and one peraluminous/S-type zircon (Strathbogie Range), which shows an elevated sulfur level with the average of 1.5ppm. Additionally, we found that sulfur content ranges between 0.4 and 2.3 ppm in young volcanic zircons (St. Lucia). Our analyses of zircons from the Jack Hills, Western Australia, whose ages range between 3.4 and 4.1 Ga, show a variety of sulfur contents. Three out of the ten zircons are consistent with the sulfur contents of S-type zircons; the rest have low sulfur contents, which are similar to those of I-type zircons. The high sulfur content in some of these Jack Hills zircons can be interpreted as indicating their origin in either a S-type granite or a volcanic reservoir. We favor the former interpretation since the Ti-in-zircon temperatures of our Jack Hills zircons is lower than those of volcanic zircons. Future work will be undertaken to develop a systematic understanding of the relationship between melt volatile content, melt chemistry, and zircon sulfur content.

Finite elements analysis of an underground collector installed by pipe-jacking method

NASA Astrophysics Data System (ADS)

María Díaz-Díaz, Luis; Omer, Joshua; Arias, Daniel; Pando, Luis

2016-04-01

This study presents a useful analysis method for estimating simultaneously the stability, stress distribution and groundwater seepage as micro - tunnel is being advanced into the ground. The research is mainly concerned with the results of a case study conducted on a project to create a long industrial collector of effluent network in the east bank of the river Avilés (north coast of Spain). This coastal city has significant port and industrial installations in its environs. The geology of the location comprises Quaternary deposits on both flanks of the estuary and includes different highly variable geotechnical behavior. The industrial effluent network, constructed in the year 2010, has a length of 13.087 km and consists of 1.5 m diameter pipes, reaching a maximum depth of 5.8 m below the surface. Only the first 7.0 km of the collector (south area) were formed using pipe-jacking method whilst the rest were formed in open excavations or surface laid. Using the commercial software RS2, a 2D finite element program for soil and rock application, the ground response to pipe jacking in pipeline installation in Avilés was analyzed. Both axi-symmetric and plane strain analyses were carried out in RS2 to simulate in 3D the ground response to pipe advancement. The results demonstrate how much of deformation there is at ground surface in the immediate vicinity of the pipeline. The main objective is to show the possible patterns of ground subsidence and tunnel stresses to inform designers as to whether the tunnel will be stable and safe.

Integer lattice gas with Monte Carlo collision operator recovers the lattice Boltzmann method with Poisson-distributed fluctuations

NASA Astrophysics Data System (ADS)

Blommel, Thomas; Wagner, Alexander J.

2018-02-01

We examine a new kind of lattice gas that closely resembles modern lattice Boltzmann methods. This new kind of lattice gas, which we call a Monte Carlo lattice gas, has interesting properties that shed light on the origin of the multirelaxation time collision operator, and it derives the equilibrium distribution for an entropic lattice Boltzmann. Furthermore these lattice gas methods have Galilean invariant fluctuations given by a Poisson statistics, giving further insight into the properties that we should expect for fluctuating lattice Boltzmann methods.

Prevalence of and interest in unionization among staff pharmacists.

PubMed

Zgarrick, David P; McHugh, Patrick P; Droege, Marcus

2006-09-01

Although the propensity for staff pharmacists to join a labor union has never been high, conditions in the profession and workplace have changed over the last decade. Some of these changes may result in staff pharmacists joining a labor union, as well as increased interest in staff pharmacists who are currently not union members to join. The objectives of this study were to (1) assess the degree of union membership among staff pharmacists in 6 states, (2) compare the practice settings, work activities and conditions, compensation, and demographic characteristics between union and nonunion staff pharmacists, (3) assess the level of interest in joining a union among nonunion staff pharmacists, and (4) compare the practice settings, work activities and working conditions, wages and benefits, and demographic characteristics between nonunion staff pharmacists interested in joining a union and nonunion staff pharmacists who were not interested in joining a union. A biennial pharmacist compensation study was conducted in 6 states (Florida, Iowa, Illinois, Minnesota, Tennessee, Wisconsin) in late 2003. Randomly selected pharmacists were mailed a self-administered questionnaire asking about their practice setting, work activities and conditions, wages and benefits, and demographic characteristics. Respondents were also asked to indicate current membership in a union and, if not a member, their desire to unionize their workplace. Compensation and unionization data were provided by 2,180 respondents (27% usable response rate), of which 1,226 (56%) were staff pharmacists. Eight percent of the staff pharmacists were union members, whereas 18% of nonunion members would vote to unionize their workplace. There were few statistically significant differences between union and nonunion staff pharmacists regarding work activities, working conditions, and hourly wages. However, the benefits provided to union staff pharmacists differed from those provided to nonunion staff pharmacists in several ways. Union staff pharmacists were younger than their nonunion counterparts (40.9 vs 44.5 years, P=.01), yet had worked for their current employers a longer time (11.1 vs 7.3 years, P=.03). Nonunion staff pharmacists interested in joining a union differed from those who would not by practice location and setting, working conditions, and benefits. Although the union membership rate among staff pharmacists is relatively low, there are geographic and practice areas where membership rates are higher. Differences in work activities, working conditions, wages, and benefits were noted between union and nonunion staff pharmacists as well as between those who would join a union and those who would not. These differences merit further investigation, especially with respect to evaluating the effectiveness of unions and identifying factors that may lead nonunionized staff pharmacists to join a union.

51. LAUNCH CREW IN FRONT OF BARGE ON RAIL BUGGIES. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

51. LAUNCH CREW IN FRONT OF BARGE ON RAIL BUGGIES. (LEFT OT RIGHT: DALE WILBURN, GENE EVERLY, TIM DOEPELHEUER, JACK ROBERTS, JAMES REARICK, STEVE RAKUSKIN) - Hillman Barge & Construction Company, Paul Thomas Boulevard, Brownsville, Fayette County, PA

76 FR 75942 - Qualification of Drivers; Exemption Applications; Vision

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-05

... renewable two-year period. They are: Anthony Brandano (MA) William R. Braun (NM) Stanley E. Elliott (UT.... Mallory (OK) Eldon Miles (IN) Norman V. Myers (WA) Jack E. Potts, Jr. (PA) Neal A. Richard (LA) John E...

78 FR 67452 - Qualification of Drivers; Exemption Applications; Vision

Federal Register 2010, 2011, 2012, 2013, 2014

2013-11-12

... exemption for a renewable two-year period. They are: Anthony Brandano (MA) Stanley E. Elliott (UT) Elmer E...) Raymond P. Madron (MD) Ronald S. Mallory (OK) Eldon Miles (IN) Norman V. Myers (WA) Jack E. Potts, Jr. (PA...

Interactive Computer Graphics.

DTIC Science & Technology

1980-10-24

Crawford Kenneth Field Steven Feiner Sidney Gudes David Holland Howard Koslow Janet Levitt Steven Lewis Andrew Malis Craig Mathias Robert Schiavone John Zahorjan 7 ...Ingrid Carlbom Paul Hanau David Irvine Kenneth Magel Jack Stankovic John Stockenberg Charles Sorgie David Taffs Undergraduate Research Assistants: John

Wind Engineering

NASA Technical Reports Server (NTRS)

1983-01-01

Dr. Jack Cermak, Director of Fluid Dynamics and Diffusion Laboratory, developed the first wind tunnel to simulate the changing temperatures, directions and velocities of natural winds. In this work, Cermak benefited from NASA technology related to what is known as the atmospheric boundary layer (ABL).

Squirrel Damage to Pines

Treesearch

USDA Forest Service

1981-01-01

Flagging (dead branch tips) on jack pine and red pine may be caused by insects, diseases, or mechanical damage. In the Lake States, flagging is often the result of mechanical damage, sometimes girdling, caused when the cones are torn off by red squirrels.

18. Castiron bridge plate citing builder, date, and names of ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

18. Cast-iron bridge plate citing builder, date, and names of bridge committee members. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

10. Detail view of decorative cast and wrought iron railing ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

10. Detail view of decorative cast and wrought iron railing on pedestrian walkway. Jack Boucher, photographer, 1977 - Neshanic Station Lenticular Truss Bridge, State Route 567, spanning South Branch of Raritan River, Neshanic Station, Somerset County, NJ

Videodisc-Computer Interfaces.

ERIC Educational Resources Information Center

Zollman, Dean

1984-01-01

Lists microcomputer-videodisc interfaces currently available from 26 sources, including home use systems connected through remote control jack and industrial/educational systems utilizing computer ports and new laser reflective and stylus technology. Information provided includes computer and videodisc type, language, authoring system, educational…

ARC-2010-ACD10-0015-111

NASA Image and Video Library

2010-01-28

Ames 70th Anniversary Turn Back the Clock Day with antique Class Cars and Classic Car parade around the center. Lewis Braxton III, Ames Deputy Center Director and Jack Boyd, Ames Historian pose by Lew's Mustang before leading the parade.

In-Depth Analysis of the JACK Model.

DOT National Transportation Integrated Search

2009-04-30

Recently, as part of a comprehensive analysis of budget and funding options, a TxDOT : special task force has examined the agencys current financial forecasting methods and has : developed a model designed to estimate future State Highway Fund rev...

Morphology of jack pine and tamarack needles in dense stands.

Treesearch

Terry F. Strong; J. Zavitkovski

1978-01-01

Effects of position in the crown on needle morphology and surface area were studied. Needle length, surface area, and dry weight increased and specific needs area decreased from the lower to the upper third of the crown.

Region 9: California South Coast Adequate Letter (4/18/2003)

EPA Pesticide Factsheets

This is a letter from Jack Broadbent, Director, to Catherine Witherspoon regarding the motor vehicle emissions budgets in the particulate matter (PM-10) progress and attainment plan and motor vehicle emissions budgets for the South Coast.

The Man Who Became Keats.

ERIC Educational Resources Information Center

Cummings, Pat

2001-01-01

Discusses influences in the life of Ezra Jack Keats and the award named after him that honors new children's authors and illustrators. Considers his poverty as a child, anti-Semitic prejudices, the use of a black protagonist, and his collage style. (LRW)

75 FR 11557 - Meeting of the California Desert District Advisory Council

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-11

... updates by Council members and reports from the BLM District Manager and five field office managers...) 697-5220. Dated: March 3, 2010. Jack L. Hamby, Acting District Manager. [FR Doc. 2010-5365 Filed 3-10...

2. VIEW OF BLOCK AND TACKLE FOR MOVING CEDAR LOGS ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. VIEW OF BLOCK AND TACKLE FOR MOVING CEDAR LOGS FROM POND TO JACK LADDER--AN ENDLESS CHAIN CONVEYOR THAT MOVES LOGS INTO MILL - Lester Shingle Mill, 1602 North Eighteenth Street, Sweet Home, Linn County, OR

Distribution and movement of bull trout in the upper Jarbidge River watershed, Nevada

USGS Publications Warehouse

Allen, M. Brady; Connolly, Patrick J.; Mesa, Matthew G.; Charrier, Jodi; Dixon, Chris

2010-01-01

In 2006 and 2007, we surveyed the occurrence of bull trout (Salvelinus confluentus), the relative distributions of bull trout and redband trout (Oncorhynchus mykiss), and stream habitat conditions in the East and West Forks of the Jarbidge River in northeastern Nevada and southern Idaho. We installed passive integrated transponder (PIT) tag interrogation systems at strategic locations within the watershed, and PIT-tagged bull trout were monitored to evaluate individual fish growth, movement, and the connectivity of bull trout between streams. Robust bull trout populations were found in the upper portions of the East Fork Jarbidge River, the West Fork Jarbidge River, and in the Pine, Jack, Dave, and Fall Creeks. Small numbers of bull trout also were found in Slide and Cougar Creeks. Bull trout were numerically dominant in the upper portions of the East Fork Jarbidge River, and in Fall, Dave, Jack, and Pine Creeks, whereas redband trout were numerically dominant throughout the rest of the watershed. The relative abundance of bull trout was notably higher at altitudes above 2,100 m. This study was successful in documenting bull trout population connectivity within the West Fork Jarbidge River, particularly between West Fork Jarbidge River and Pine Creek. Downstream movement of bull trout to the confluence of the East Fork and West Fork Jarbidge River both from Jack Creek (rkm 16.6) in the West Fork Jarbidge River and from Dave Creek (rkm 7.5) in the East Fork Jarbidge River was detected. Although bull trout exhibited some downstream movement during the spring and summer, much of their emigration occurred in the autumn, concurrent with decreasing water temperatures and slightly increasing flows. The bull trout that emigrated were mostly age-2 or older, but some age-1 fish also emigrated. Upstream movement by bull trout was detected less than downstream movement. The overall mean annual growth rate of bull trout in the East Fork and West Fork Jarbidge River was 36 mm. This growth rate is within the range reported in other river systems and is indicative of good habitat conditions. Mark-recapture methods were used to estimate a population of 147 age-1 or older bull trout in the reach of Jack Creek upstream of Jenny Creek.

Euphausia mucronata: A keystone herbivore and prey of the Humboldt Current System

NASA Astrophysics Data System (ADS)

Antezana, Tarsicio

2010-04-01

Euphausiids are important components of many ecosystems, especially in productive regions of temperate and high latitudes. The present paper makes the case that E. mucronata plays a keystone role in the food web of the Humboldt Current System (HCS) based on a synthesis of new and published data supporting its potential role as a primary grazer, as well as a principal prey for upper trophic level fish. E. mucronata is an endemic species, concentrated in the coastal upwelling belt of the HCS, with morpho-physiological adaptations to vertically migrate into the Oxygen Minimum Zone (OMZ). Within the 100-km coastal belt of the HCS it accounts for ca. 50% of the meso zooplankton wet weight in winter. In the mixed layer, it is a herbivore with high night ingestion rates (612.2 ng Chl eq ind -1 h -1 or 1013.9 μg C ind -1 d -1, in winter), and accounted for a 19.3% impact on primary production in winter, at an intermediate population abundance (3.8 ind m -3). At higher abundances (50 ind m -3) equivalent to swarms, impact on primary production could reach 254%. Additionally E. mucronata is a common prey of numerous upper trophic level predators. The diet of jack mackerel ( Trachurus murphyi) off central Chile (34-39°S) indicates a striking dependence on E. mucronata prey (average of 75% of stomach content in weight). The fishing season off central Chile extended from austral fall (March-April) and continued at least until the end of austral winter (September). The average daily ration of jack mackerel was 17.4 g, which is equivalent to 2.3% of fish body weight per day. The total E. mucronata consumed in 1991 by the landed population of fish (3.7 million tons yr -1) amounted to 23.2 million tons yr -1. The total estimated population of jack mackerel that year (17.6 million tons) would have consumed ca. 110.2 million tons of E. mucronata. Based on stomach contents, consumption of E. mucronata by other nektonic predators off Chile and off Peru is also outstanding. Four different food web scenarios are offered for the northern and southern sectors of the HCS, according to regime shifts of small pelagics such as anchovy and jack mackerel, under the assumption that E. mucronata is a keystone link.

Recovering the primary geochemistry of Jack Hills zircons through quantitative estimates of chemical alteration

NASA Astrophysics Data System (ADS)

Bell, Elizabeth A.; Boehnke, Patrick; Harrison, T. Mark

2016-10-01

Despite the robust nature of zircon in most crustal and surface environments, chemical alteration, especially associated with radiation damaged regions, can affect its geochemistry. This consideration is especially important when drawing inferences from the detrital record where the original rock context is missing. Typically, alteration is qualitatively diagnosed through inspection of zircon REE patterns and the style of zoning shown by cathodoluminescence imaging, since fluid-mediated alteration often causes a flat, high LREE pattern. Due to the much lower abundance of LREE in zircon relative both to other crustal materials and to the other REE, disturbance to the LREE pattern is the most likely first sign of disruption to zircon trace element contents. Using a database of 378 (148 new) trace element and 801 (201 new) oxygen isotope measurements on zircons from Jack Hills, Western Australia, we propose a quantitative framework for assessing chemical contamination and exchange with fluids in this population. The Light Rare Earth Element Index is scaled on the relative abundance of light to middle REE, or LREE-I = (Dy/Nd) + (Dy/Sm). LREE-I values vary systematically with other known contaminants (e.g., Fe, P) more faithfully than other suggested proxies for zircon alteration (Sm/La, various absolute concentrations of LREEs) and can be used to distinguish primary compositions when textural evidence for alteration is ambiguous. We find that zircon oxygen isotopes do not vary systematically with placement on or off cracks or with degree of LREE-related chemical alteration, suggesting an essentially primary signature. By omitting zircons affected by LREE-related alteration or contamination by mineral inclusions, we present the best estimate for the primary igneous geochemistry of the Jack Hills zircons. This approach increases the available dataset by allowing for discrimination of on-crack analyses (and analyses with ambiguous or no information on spot placement or zircon internal structures) that do not show evidence for chemical alteration. It distinguishes between altered and unaltered samples in ambiguous cases (e.g., relatively high Ti), identifying small groups with potentially differing provenance from the main Jack Hills population. Finally, filtering of the population using the LREE-I helps to more certainly define primary correlations among trace element variables, potentially relatable to magmatic compositional evolution.

Impact of El Niño events on pelagic fisheries in Peruvian waters

NASA Astrophysics Data System (ADS)

Ñiquen, Miguel; Bouchon, Marilú

2004-03-01

Using data from stock assesment surveys on pelagic resources during El Niño events of 1972/73, 1982/83, 1997/98, we analyze biological changes on pelagic ecosystems and pelagic fisheries during different stages of development of El Niño phenomenon: emergence, full, final and post-Niño. Results indicate changes in spatial distribution of resources, their concentration and size structure. In anchovy (Engraulis ringens) a decrease in biomass was observed, which was estimated at 1.2 million tons in September 1998, the lowest throughout the 1990s. This resource showed an asymmetric distribution towards the south of Peru. Other pelagic resources increased their biomass during or after Niño events, primarily sardine (Sardinops sagax), jack mackerel (Trachurus murphyi), pacific mackerel (Scomber japonicus), and longnose anchovy (Anchoa nasus). At the end of the El Niño phenomenon we found less productivity but more diversity in the pelagic ecosystem. During the 1997/98 El Niño, the diversity index (Manual de Ecologia, 1a Edition, Editorial Trillas, Mexico, 267pp) increased from 0.87 to 1.23-1.70. In both the emergence stage and fully developed stages of El Niño we found large numbers of sardine and longnose anchovy present simultaneously. Size structure of sardine, jack mackerel, and pacific mackerel showed an increase in juveniles. Anchovy during El Niño showed a single modal group composed of adults, but the post-Niño phase indicated an increase in juveniles with an average length of 6-7 cm. In El Niño conditions spawning among anchovy was low, but among sardine and pacific mackerel it was high. We observed, for the first time during full spawning, juvenile sardines with a total length of 18-20 cm. The anchovy spawning season during the post-Niño phase was considerably lengthened, from April to December 1998. Drastic change occurred in fisheries when monospecific fisheries, based on anchovy before El Niño, became multispecific fisheries based on sardine, jack mackerel, pacific mackerel, longnose anchovy and other species typical of tropical and warm oceans. Landings of anchovy decreased substantially, but those of longnose anchovy, jack mackerel, pacific mackerel, and sardine increased.

12 CFR 704.2 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... Banking NATIONAL CREDIT UNION ADMINISTRATION REGULATIONS AFFECTING CREDIT UNIONS CORPORATE CREDIT UNIONS § 704.2 Definitions. Adjusted trading means any method or transaction whereby a corporate credit union... means the sum of a corporate credit union's retained earnings, paid-in capital, and membership capital...

Trade Union Mergers: A Survey of the Literature.

ERIC Educational Resources Information Center

Michelson, Grant

2000-01-01

Examines trade union mergers highlighting merger forms, merger motivation, role played by union officers, and merger waves. Discusses the consequences of mergers on members and union performance and concludes that union merger activity has had little impact. (Contains 74 references.) (JOW)

History and Status of the CIS Customs Union

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lawson, T.M.; Erickson, S.A.

1999-08-31

This report explores the history of the CIS Customs Union and the major obstacles the Union faces in its implementation. Investigation of the Customs Union is necessary as its implementation could effect the Second Line of Defense (SLD) Program. Russian Customs contends that radiation detectors should not be installed along the Customs Union members borders of as the borders will be dissolved when the Union is implemented.

76 FR 13504 - Conversions of Insured Credit Unions

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-14

... Conversions of Insured Credit Unions AGENCY: National Credit Union Administration (NCUA). ACTION: Final rule... phrase ``Regional Director'' in NCUA's rule on credit union to mutual savings bank conversions. For... for the review and approval of certain types of credit union conversions from the Regional Directors...

4. Photocopy of blue line drawing (on file at La ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. Photocopy of blue line drawing (on file at La Grande District Office, La Grande, Oregon) USDA Forest Service, 1938 SITE PLAN, UNION RANGER STATION - Union Ranger District Compound, Fronting State Highway 203, at West edge of Union, Union, Union County, OR

Multi-mode Li diffusion in natural zircons: Evidence for diffusion in the presence of step-function concentration boundaries

NASA Astrophysics Data System (ADS)

Tang, Ming; Rudnick, Roberta L.; McDonough, William F.; Bose, Maitrayee; Goreva, Yulia

2017-09-01

Micron- to submicron-scale observations of Li distribution and Li isotope composition profiles can be used to infer the mechanisms of Li diffusion in natural zircon. Extreme fractionation (20-30‰) within each single crystal studied here confirms that Li diffusion commonly occurs in zircon. Sharp Li concentration gradients frequently seen in zircons suggest that the effective diffusivity of Li is significantly slower than experimentally determined (Cherniak and Watson, 2010; Trail et al., 2016), otherwise the crystallization/metamorphic heating of these zircons would have to be unrealistically fast (years to tens of years). Charge coupling with REE and Y has been suggested as a mechanism that may considerably reduce Li diffusivity in zircon (Ushikubo et al., 2008; Bouvier et al., 2012). We show that Li diffused in the direction of decreasing Li/Y ratio and increasing Li concentration (uphill diffusion) in one of the zircons, demonstrating charge coupling with REE and Y. Quantitative modeling reveals that Li may diffuse in at least two modes in natural zircons: one being slow and possibly coupled with REE+Y, and the other one being fast and not coupled with REE+Y. The partitioning of Li between these two modes during its diffusion may depend on the pre-diffusion substitution mechanism of REE and Y in the zircon lattice. Based on our results, sharp Li concentration gradients are not indicative of limited diffusion, and can be preserved at temperatures >700 °C on geologic timescales. Finally, large δ7 Li variations observed in the Hadean Jack Hills zircons may record kinetic fractionation, rather than a record of ancient intense weathering in the granite source materials.

Adult Learning: A Reader.

ERIC Educational Resources Information Center

Sutherland, Peter, Ed.

This book on adult learning is divided into six sections. Section 1, Cognitive Processes, includes the following chapters: "Cognitive Processes: Contemporary Paradigms of Learning" (Jack Mezirow); "Information Processing, Memory, Age and Adult Learning" (Gillian Boulton-Lewis); "Adult Learners' Metacognitive Behaviour in Higher Education" (Barry…

41 CFR 109-50.105 - Equipment which may not be granted.

Code of Federal Regulations, 2013 CFR

2013-07-01

... Management Regulations System (Continued) DEPARTMENT OF ENERGY PROPERTY MANAGEMENT REGULATIONS UTILIZATION AND DISPOSAL 50-SPECIAL DOE DISPOSAL AUTHORITIES 50.1-Used Energy-Related Laboratory Equipment Grant...; drafting supplies; refrigerators; tools; presses; lathes; furnaces; hydraulic and mechanical jacks; cranes...

41 CFR 109-50.105 - Equipment which may not be granted.

Code of Federal Regulations, 2014 CFR

2014-01-01

... Management Regulations System (Continued) DEPARTMENT OF ENERGY PROPERTY MANAGEMENT REGULATIONS UTILIZATION AND DISPOSAL 50-SPECIAL DOE DISPOSAL AUTHORITIES 50.1-Used Energy-Related Laboratory Equipment Grant...; drafting supplies; refrigerators; tools; presses; lathes; furnaces; hydraulic and mechanical jacks; cranes...

41 CFR 109-50.105 - Equipment which may not be granted.

Code of Federal Regulations, 2012 CFR

2012-01-01

... Management Regulations System (Continued) DEPARTMENT OF ENERGY PROPERTY MANAGEMENT REGULATIONS UTILIZATION AND DISPOSAL 50-SPECIAL DOE DISPOSAL AUTHORITIES 50.1-Used Energy-Related Laboratory Equipment Grant...; drafting supplies; refrigerators; tools; presses; lathes; furnaces; hydraulic and mechanical jacks; cranes...

77 FR 42713 - Notice of Intent to Grant an Exclusive License; PadJack, Inc.

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-20

... Security Agency Technology Transfer Program, 9800 Savage Road, Suite 6541, Fort George G. Meade, MD 20755... Savage Road, Suite 6541, Fort George G. Meade, MD 20755-6541, telephone (443) 479-9569. Dated: July 17...

77 FR 36946 - Snapper-Grouper Fishery of the South Atlantic; 2012 Commercial Accountability Measure and Closure...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-06-20

... amberjack, almaco jack, and banded rudderfish complex, as estimated by the Science Research Director (SRD... Fisheries Science Center indicate that the commercial sector for this complex is projected to reach the ACL...

Correspondence: EPA Administrator to Mr. Jack N. Gerard, President and Chief Executive Officer, American Petroleum Institute, July 23, 2012

EPA Pesticide Factsheets

Correspondence is a record of the Administrator's letter to American Petroleum Institute and the Natural Gas Institute about the EPA's study on hydraulic fracturing's possible impact on drinking water.

A Probe for Measuring Moisture Content in Dead Roundwood

Treesearch

Richard W. Blank; John S. Frost; James E. Eenigenburg

1983-01-01

This paper reports field test results of a wood moisture probe''s accuracy in measuring fuel moisture content of dead roundwood. Probe measurements, corrected for temperature, correlated well with observed fuel moistures of 1-inch dead jack pine branchwood.

KSC-97PC1215

NASA Image and Video Library

1997-08-07

STS-85 Payload Commander N. Jan Davis is assisted with her ascent/reentry flight suit by white room closeout crew members Dave Law (left) and Jack Burritt at Launch Pad 39A before she enters the crew cabin of the Space Shuttle orbiter Discovery

ARC-2011-ACD11-0143-001

NASA Image and Video Library

2011-08-17

Pilot Greg Johnson and Mission Specialist Mike Fincke of Space Shuttle Endeavour's final mission STS-134 come to Ames Research Center to share their experiences, answer questions and sign autographs during a afternoon with the staff. With John W. 'Jack' Boyd on right.

Manitoba

Atmospheric Science Data Center

2013-04-17

... black spruce, jack pine, tamarack, willow, and birch. Human population density is sparse, averaging about 1 person per 10 square ... Big Sand Lake, above image center, was reported to be under control on June 20, whereas the plume at lower left, to the west of Gold Sand ...

76 FR 13430 - Meeting of the California Desert District Advisory Council

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-11

... members and reports from the BLM District Manager and five field office managers. In addition, the agenda...: March 2, 2011. Jack L. Hamby, Associate District Manager. [FR Doc. 2011-5456 Filed 3-10-11; 8:45 am...

1300243

NASA Image and Video Library

2013-04-18

Alabama Gov. Robert Bentley signs a proclamation declaring April 18, 2013, "NASA Day in Alabama." Looking on, from left, are Marshall Space Flight Center Director Patrick Scheuermann, astronauts Kathleen "Kate" Rubins and Jack Fischer, and State Sen. Bill Holtzclaw of Madison, who represents Madison and Limestone counties.

Research Summaries

ERIC Educational Resources Information Center

Brock, Stephen E., Ed.

2009-01-01

This article presents summaries of two recent crisis management publications: (1) "Social Validity of the CISM Model for School Crisis Intervention," summarized by Jack R. Dempsey; and (2) "School Violence: Associations With Control, Security/Enforcement, Educational/Therapeutic Approaches, and Demographic Factors," summarized by Ashlee Barton.…

Proceedings of the Eighth Lake States Forest Tree Improvement conference, Sept. 12-13, 1967.

Treesearch

NCFES

1968-01-01

Presents 11 papers concerning recent research in forest genetics, physiology, and allied fields. Species discussed include red pine, jack pine, Scotch pine, black spruce, larch, yellow birch, sugar maple, silver maple, cottonwood, and walnut.

Studying Adult Learning through the History of Knowledge.

ERIC Educational Resources Information Center

Ekpenyong, Lawrence E.

1990-01-01

Discusses the methodology by which people arrive at "knowledge" and how knowledge has been seen by philosophers and critical thinkers through history. Includes the theories of Jurgen Habermas, Jack Mezirow, Thomas Kuhn, and Paulo Freire. Cites implications for adult education. (JOW)

Love Comes First.

ERIC Educational Resources Information Center

Natale, Jo Anna

1992-01-01

Florida elementary school principal Jack Currie believes in unorthodox loving behavior toward children, including cuddling, kissing, and telling them he cares. Unconcerned about litigation risks, Currie is an outspoken advocate for personalized child protection services and bearish about disrespectful behavior and bureaucratic red tape. He…

75 FR 8042 - Advisory Committee on Earthquake Hazards Reduction Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-02-23

... Earthquake Hazards Reduction Meeting AGENCY: National Institute of Standards and Technology, Department of Commerce. ACTION: Notice of open meeting. SUMMARY: The Advisory Committee on Earthquake Hazards Reduction.... FOR FURTHER INFORMATION CONTACT: Dr. Jack Hayes, National Earthquake Hazards Reduction Program...

76 FR 16235 - Corporate Credit Unions, Technical Corrections

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-23

... NATIONAL CREDIT UNION ADMINISTRATION 12 CFR Part 707 RIN 3133-AD58 Corporate Credit Unions... 2010, NCUA issued technical corrections to its corporate credit union rule, published in the Federal... October 2010, NCUA published a comprehensive overhaul to its corporate credit union rule, 12 CFR part 704...

Bone fragment union and remodeling after arthroscopic bony bankart repair for traumatic anterior shoulder instability with a glenoid defect: influence on postoperative recurrence of instability.

PubMed

Nakagawa, Shigeto; Ozaki, Ritsuro; Take, Yasuhiro; Mae, Tatsuo; Hayashida, Kenji

2015-06-01

Although good clinical outcomes have been reported after arthroscopic bony Bankart repair, the extent of bone union is still unclear. To investigate bone union after arthroscopic bony Bankart repair and its influence on postoperative recurrence of instability. Cohort study; Level of evidence, 3. Among 113 consecutive shoulders that underwent arthroscopic bony Bankart repair, postoperative evaluation of bone union by computed tomography (CT) was performed at various times in 81 shoulders. Bone union was investigated during 3 periods: 3 to 6 months postoperatively (first period), 7 to 12 months postoperatively (second period), and 13 months or more postoperatively (third period). The influence of the size of the preoperative glenoid defect and the size of the bone fragment on bone union was investigated, as well as the influence of bone union on postoperative recurrence of instability. In shoulders with bone union, bone fragment remodeling and changes in the glenoid defect size were also investigated. The bone union rate was 30.5% in the first period, 55.3% in the second period, and 84.6% in the third period. Among 53 shoulders with CT evaluation in the second period or later and follow-up for a minimum of 1 year, there was complete union in 33 shoulders (62.3%), partial union in 3 (5.7%), nonunion in 8 (15.1%), and no fragment on CT in 9 (17.0%). The complete union rate was 50% for 22 shoulders with small bone fragments (<5% of the glenoid diameter), 56.3% for 16 shoulders with medium fragments (5%-10%), and 86.7% for 15 shoulders with large fragments (>10%). The recurrence rate for postoperative instability was only 6.1% for shoulders with complete union, while it was 50% for shoulders with partial union, nonunion, no fragment, and no fragment on CT. The recurrence rate was significantly higher (36.4%) in shoulders with small fragments, but it was significantly lower in shoulders with bone union. In shoulders with bone union, the bone fragment frequently became larger over time, while the size of the glenoid defect decreased significantly from 18.6% preoperatively to 4.7% postoperatively. Bone union was not always achieved after arthroscopic bony Bankart repair, and union was often delayed. Recurrence of instability was significantly more frequent when bone union failed. The size of the glenoid defect decreased significantly in shoulders with bone union. © 2015 The Author(s).

Efficient LBM visual simulation on face-centered cubic lattices.

PubMed

Petkov, Kaloian; Qiu, Feng; Fan, Zhe; Kaufman, Arie E; Mueller, Klaus

2009-01-01

The Lattice Boltzmann method (LBM) for visual simulation of fluid flow generally employs cubic Cartesian (CC) lattices such as the D3Q13 and D3Q19 lattices for the particle transport. However, the CC lattices lead to suboptimal representation of the simulation space. We introduce the face-centered cubic (FCC) lattice, fD3Q13, for LBM simulations. Compared to the CC lattices, the fD3Q13 lattice creates a more isotropic sampling of the simulation domain and its single lattice speed (i.e., link length) simplifies the computations and data storage. Furthermore, the fD3Q13 lattice can be decomposed into two independent interleaved lattices, one of which can be discarded, which doubles the simulation speed. The resulting LBM simulation can be efficiently mapped to the GPU, further increasing the computational performance. We show the numerical advantages of the FCC lattice on channeled flow in 2D and the flow-past-a-sphere benchmark in 3D. In both cases, the comparison is against the corresponding CC lattices using the analytical solutions for the systems as well as velocity field visualizations. We also demonstrate the performance advantages of the fD3Q13 lattice for interactive simulation and rendering of hot smoke in an urban environment using thermal LBM.

State of the Unions

ERIC Educational Resources Information Center

Blair, Julie

2004-01-01

This article discusses the corrupt leadership of two big-city teachers' unions, the Washington Teachers Union (WTU) and its Miami cousin, United Teachers of Dade (UTD), that took both unions to the brink of despair and financial ruin. While the feds were rifling through union files to build extensive criminal investigations, congress called Sandra…

12 CFR 708b.105 - Approval of merger proposal by the NCUA.

Code of Federal Regulations, 2010 CFR

2010-01-01

....105 Section 708b.105 Banks and Banking NATIONAL CREDIT UNION ADMINISTRATION REGULATIONS AFFECTING CREDIT UNIONS MERGERS OF FEDERALLY-INSURED CREDIT UNIONS; VOLUNTARY TERMINATION OR CONVERSION OF INSURED... credit union is federally-insured and the merging credit union is nonfederally-insured or uninsured, the...

12 CFR 708b.302 - Conversion of Insurance (Federal Credit Union).

Code of Federal Regulations, 2010 CFR

2010-01-01

... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Conversion of Insurance (Federal Credit Union... CREDIT UNIONS MERGERS OF FEDERALLY-INSURED CREDIT UNIONS; VOLUNTARY TERMINATION OR CONVERSION OF INSURED STATUS Forms § 708b.302 Conversion of Insurance (Federal Credit Union). Unless the Regional Director...

12 CFR 708b.302 - Conversion of insurance (Federal Credit Union).

Code of Federal Regulations, 2011 CFR

2011-01-01

... 12 Banks and Banking 6 2011-01-01 2011-01-01 false Conversion of insurance (Federal Credit Union... CREDIT UNIONS MERGERS OF FEDERALLY-INSURED CREDIT UNIONS; VOLUNTARY TERMINATION OR CONVERSION OF INSURED STATUS Forms § 708b.302 Conversion of insurance (Federal Credit Union). Unless the Regional Director...

Compulsory Unionism, the NLRB, and the Courts: A Legal Analysis of Union Security Agreements. Labor Relations and Public Policy Series Report No. 15.

ERIC Educational Resources Information Center

Haggard, Thomas R.

As used here, compulsory union or union security agreements are federally sanctioned contracts between a labor union and employer whereby the employer agrees to require his employees, as a condition of their employment, to affiliate with the union in some way. Right-to-work is usually construed to mean the liberty of the individual to have a job…

75 FR 64785 - Corporate Credit Unions

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-20

...NCUA is issuing final amendments to its rule governing corporate credit unions. The major revisions involve corporate credit union capital, investments, asset-liability management, governance, and credit union service organization (CUSO) activities. The amendments establish a new capital scheme, including risk-based capital requirements; impose new prompt corrective action requirements; place various new limits on corporate investments; impose new asset-liability management controls; amend some corporate governance provisions; and limit a corporate CUSO to categories of services preapproved by NCUA. In addition, this rulemaking contains conforming amendments to rules governing Prompt Corrective Action (for natural person credit unions); Investments and Deposit Activities (for federal credit unions); Administrative Actions, Adjudicative Hearings, Rules of Practice and Procedure, and Investigations; and Involuntary Liquidation of Federal Credit Unions and Adjudication of Creditor Claims Involving Federally Insured Credit Unions. These amendments will strengthen individual corporates and the corporate credit union system as a whole.

Area of Lattice Polygons

ERIC Educational Resources Information Center

Scott, Paul

2006-01-01

A lattice is a (rectangular) grid of points, usually pictured as occurring at the intersections of two orthogonal sets of parallel, equally spaced lines. Polygons that have lattice points as vertices are called lattice polygons. It is clear that lattice polygons come in various shapes and sizes. A very small lattice triangle may cover just 3…

What can zircon ages from the Jack Hills detrital zircon suite really tell us about Hadean geodynamics?

NASA Astrophysics Data System (ADS)

Whitehouse, Martin; Nemchin, Alexander

2015-04-01

As the only direct sample of the Hadean Earth, detrital zircon grains from the Jack Hills, Western Australia, have been the subject of intense investigation over the almost three decades since their discovery. A wide variety of geochemical and isotopic analyses of these grains, as well as their mineral inclusions, have been used variously to support two fundamentally different models for Hadean geodynamics: (i) Some form of (not necessarily modern-style) plate recycling generating felsic (continental-type?) crust at the boundaries [1, 2], or conversely (ii) the persistence of a long-lived, stagnant basaltic lid within which magmatism occurred as a result of internal temperature perturbations and/or impacts [3, 4], a model also generally consistent with a wide range of observations from post-Hadean geochemical reservoirs. Despite the considerable time and resources expended, the majority of these studies uncritically accept the individual U-Pb zircon ages, even though their veracity is key to many of the interpretations [5, 6]. We report here the results of an in-depth evaluation of all published (and new) U-Pb ages from the Jack Hills zircon suite in order to define age populations that can be used with a high degree of confidence in geodynamic interpretations. A notable problem in the interpretation of U-Pb data from ancient zircon grains (including those as young as the Neoarchean) is that disturbance of the systematics even several 100 Ma after crystallization causes data to spread along the concordia curve without becoming discernably discordant within the relatively large error bounds associated with U/Pb ages from in situ dating methods (e.g. SIMS). While 207Pb/206Pb ages are typically more precise, individually they provide no means to detect Pb-loss-induced younging. However, if two or preferably more analyses have been made in the same zircon growth zone, a reasonable evaluation of the possibility of Pb-loss can be made. In the available Jack Hills zircon dataset, only 111 grains have been analysed at least twice and of these, only 48 give a consistent internal age, while only 14 have been analysed more than twice and can strictly be considered to yield true ages. Two resulting age peaks at 4.18 - 4.08 Ga and 4.05 - 3.98 Ga potentially represent major magmatic events in the Hadean. In order to explain ages >4.18 Ga, a magmatic event as old as the oldest reliable Jack Hills zircon age of 4.374 Ga is also required. The significance of this limited number of magmatic events for Hadean global geodynamic models will be discussed. References: [1] Harrison, T.M. et al. Geochim Cosmochim Ac 69 (10), A390-A390 (2005), [2] Peck, et al. Geochim Cosmochim Acta 65 (22), 4215-4229 (2001), [3] Kemp, A.I.S. et al. EPSL, 296 (1-2), 45-56 (2010), [4] Kamber, B.S., et al., Contrib Mineral Petr 145 (1), 25-46 (2003), [5] Cavosie, A.J., et al., Precambrian Res 135 (4), 251-279 (2004). [6] Holden P, et al., Int. J. Masspectrometry, 286, 53-63 (2009)